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Find whether 12, 24, 18, 36 are in order that can be expressed as two ratios that are in proportion.

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Find whether 12, 24, 18, 36 are in order that can be expressed as two ratios that are in proportion.

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Yes, they are in proportion

12 : 24 = 18 : 36

12/24 = 1/2 Product of means = 24 × 18 = 432

18/36 = 1/2 Product of extremes = 12 × 36 = 432

Hence a × d = b × c

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