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Finding the Fourth Proportional to 31,963.68, 47,887.92 and 17,156.88

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Solution

The fourth proportional to 31,963.68, 47,887.92 and 17,156.88 is: 25,704.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,963.68 : 47,887.92 = 17,156.88 : x
  2. Step 2: Convert to fraction form
    31,963.68/47,887.92 = 17,156.88/x
  3. Step 3: Cross multiply
    31,963.68x = 47,887.92 × 17,156.88
  4. Step 4: Simplify right side
    31,963.68x = 821,607,296.89
  5. Step 5: Solve for x
    x = 821,607,296.89/31,963.68
  6. Step 6: Final answer
    x = 25,704.40

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