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      Question

      Find the third proportional to 14 and

      70?
      A 350 Correct Answer Incorrect Answer
      B 208 Correct Answer Incorrect Answer
      C 126 Correct Answer Incorrect Answer
      D 192 Correct Answer Incorrect Answer

      Solution

      Third proportional = a : b :: b : c It can be written as = b2 = ac   Here, a : b : c = 14 : 70 : c => 70 × 70 = 14 × c => c = (70 × 70)/14 = 350

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