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www.reference.com/math/definition-extremes-math-72d4a1f54...

What Is the Definition of Extremes in Math? When solving proportions in math, the outer terms in the calculation are the extremes, and the middle terms are called the means. When setting the proportion equation a/b = c/d, the a and the d figures are the extremes.

virtualnerd.com/.../means-extremes-definition

The means-extremes property of proportions allows you to cross multiply, taking the product of the means and setting them equal to the product of the extremes. This property comes in handy when you're trying to solve a proportion.

www.thefreedictionary.com/Extremes

Extremes synonyms, Extremes pronunciation, Extremes translation, English dictionary definition of Extremes. adj. 1. Most remote in any direction; outermost or farthest: the extreme edge of the field. 2.

www.dictionary.com/browse/extreme

Extreme definition, of a character or kind farthest removed from the ordinary or average: extreme measures. See more. ... Mathematics. the first or the last term, as of a proportion or series. ... 7 Things Your Kids Are Saying & What They Really Mean Read more in this article about some frequently asked questions and fun facts related to our ...

www.answers.com/Q/What_are_math_extremes

In short, math extreme is the highest (or lowest) value of a math function on an interval (a,b). For example, function y=x2 has minimum (extreme) for x=0 on interval (minus infinity, plus infinity).

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Ratios and Proportions, Arithmetic & Geometric Mean, Means Extremes Theorem - Geometry Problems - Duration: 19:49. The Organic Chemistry Tutor 2,032 views 19:49

www.quora.com/What-is-the-means-extremes-property-in-math

First if you have a proportion (two equal fractions) like [math]\frac{a}{b}=\frac{c}{d}[/math] then the means are b and c and the extremes are a and d. Now the Means Extremes property is that you can cross multiply like this ad = bc and the equality still holds.

www.wyzant.com/resources/blogs/14833/means_and_extremes

The two middle numbers are the means, and the two outer numbers are the extremes. To make sense of the term cross-multiply, though, you should write this proportion using fraction notation: So, we can cross-multiply the means (1 × 120) and the extremes (60 × 2) and see that the respective products are equal (1 × 120 = 120, and 60 × 2 = 120).

mathforum.org/library/drmath/view/58040.html

Means and Extremes Date: 06/20/2001 at 07:38:14 From: Jill Ilyes Subject: Means and extremes in proportions My class is currently learning about proportions, and has asked the question, "Why are certain parts of the proportion called the means and the other parts called the extremes?"

www.math-only-math.com/properties-of-proportion.html

Product of extremes = 3 × 12 = 36 and product of means = 4 × 9 = 36 (vii) From the terms of a given proportion, we can make three more proportions. (viii) If x : y = y : z, then x, y, z are said to be continued proportion.