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Finding the Fourth Proportional to 22,930.22, 31,644.88 and 12,859.70

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Solution

The fourth proportional to 22,930.22, 31,644.88 and 12,859.70 is: 17,747.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,930.22 : 31,644.88 = 12,859.70 : x
  2. Step 2: Convert to fraction form
    22,930.22/31,644.88 = 12,859.70/x
  3. Step 3: Cross multiply
    22,930.22x = 31,644.88 × 12,859.70
  4. Step 4: Simplify right side
    22,930.22x = 406,943,472.96
  5. Step 5: Solve for x
    x = 406,943,472.96/22,930.22
  6. Step 6: Final answer
    x = 17,747.04

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