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SSC CHSL 2023 · PYQ · Ratio and Proportion · medium

Find the third proportional of 25 and 45.

  1. A.81✓ Correct
  2. B.85
  3. C.65
  4. D.76

Explanation

If the third proportional to 25 and 45 is x, then 25:45 = 45:x, giving x = 45²/25 = 2025/25 = 81.
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