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7.2: Proportion Properties

Difficulty Level: At Grade Created by: CK-12
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Vocabulary

TermDefinition
Cross Products To simplify a proportion using cross products, multiply the diagonals of each ratio.
Cross-Multiplication Theorem The Cross-Multiplication theorem states that if a, b, c and d are real numbers, with b \ne 0 and d \ne 0 and if \frac{a}{b} = \frac{c}{d}, then ad = bc.

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Difficulty Level:
At Grade
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Date Created:
Jul 17, 2012
Last Modified:
Aug 02, 2016
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MAT.GEO.514.L.2