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Question
The fourth proportional to 5, 8, 15 is
Options
18
24
19
20
MCQ
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Solution
24
Explanation:
Let the fourth proportional to 5, 8, 15 be x.
Then, `5:8::15:x`
⇒ `5x=(8xx15)`
⇒ `x=((8xx15))/5=24`
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Ratio and Proportion (Entrance Exam)
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