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Find the Fourth Term of the Proportion Whose First, Second, and Third Terms Are 18, 27, and 32 Respectively.

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Question

Find the fourth term of the proportion whose first, second, and third terms are 18, 27, and 32 respectively.

Sum
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Solution

Let the fourth term = x
18 : 27 : : 32 : x
⇒ 18 × x = 27 × 32

⇒ x = `(27xx32)/18` = 3 × 16 = 48
Fourth term = 48

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Chapter 12: Proportion (Including Word Problems) - Exercise 12 (A)

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Selina Mathematics [English] Class 6
Chapter 12 Proportion (Including Word Problems)
Exercise 12 (A) | Q 6
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