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Finding the Fourth Proportional to 31,695.84, 47,531 and 11,963.68

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Solution

The fourth proportional to 31,695.84, 47,531 and 11,963.68 is: 17,940.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,695.84 : 47,531 = 11,963.68 : x
  2. Step 2: Convert to fraction form
    31,695.84/47,531 = 11,963.68/x
  3. Step 3: Cross multiply
    31,695.84x = 47,531 × 11,963.68
  4. Step 4: Simplify right side
    31,695.84x = 568,645,674.08
  5. Step 5: Solve for x
    x = 568,645,674.08/31,695.84
  6. Step 6: Final answer
    x = 17,940.70

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