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Find the Fourth Proportional To 1.5, 4.5 and 3.5 - Mathematics

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Question

Find the fourth proportional to 1.5, 4.5 and 3.5

Solution

Let the fourth proportional to 1.5, 4.5 and 3.5 be x.

⇒ 1.5 : 4.5 = 3.5 : x

⇒ 1.5 × x = 3.5  x 4.5

⇒ x = 10.5

  Is there an error in this question or solution?
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APPEARS IN

 Selina Solution for Concise Mathematics for Class 10 ICSE (2020 (Latest))
Chapter 7: Ratio and Proportion (Including Properties and Uses)
Exercise 7(B) | Q: 1.1 | Page no. 94
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Find the Fourth Proportional To 1.5, 4.5 and 3.5 Concept: Ratios.
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