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Finding the Fourth Proportional to 22,712.13, 34,068.20 and 7,129.75

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Solution

The fourth proportional to 22,712.13, 34,068.20 and 7,129.75 is: 10,694.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,712.13 : 34,068.20 = 7,129.75 : x
  2. Step 2: Convert to fraction form
    22,712.13/34,068.20 = 7,129.75/x
  3. Step 3: Cross multiply
    22,712.13x = 34,068.20 × 7,129.75
  4. Step 4: Simplify right side
    22,712.13x = 242,897,748.95
  5. Step 5: Solve for x
    x = 242,897,748.95/22,712.13
  6. Step 6: Final answer
    x = 10,694.63

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