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Railways PYQCBT 1 2016

RRB NTPC · Question 44

What is the 4^th proportional of 3, 8, 12,?

  1. 36

  2. 26

  3. 32

  4. 16

Show answer & explanation

Answer: (C) 32

Explanation

The fourth proportional x satisfies 3 : 8 = 12 : x. So 3x = 8 × 12 = 96, and x = 32.