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Finding the Fourth Proportional to 29,311.55, 40,450.13 and 15,882.91

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Solution

The fourth proportional to 29,311.55, 40,450.13 and 15,882.91 is: 21,918.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,311.55 : 40,450.13 = 15,882.91 : x
  2. Step 2: Convert to fraction form
    29,311.55/40,450.13 = 15,882.91/x
  3. Step 3: Cross multiply
    29,311.55x = 40,450.13 × 15,882.91
  4. Step 4: Simplify right side
    29,311.55x = 642,465,774.28
  5. Step 5: Solve for x
    x = 642,465,774.28/29,311.55
  6. Step 6: Final answer
    x = 21,918.52

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