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Finding the Fourth Proportional to 10,372.80, 15,559.17 and 2,581.61

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Solution

The fourth proportional to 10,372.80, 15,559.17 and 2,581.61 is: 3,872.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,372.80 : 15,559.17 = 2,581.61 : x
  2. Step 2: Convert to fraction form
    10,372.80/15,559.17 = 2,581.61/x
  3. Step 3: Cross multiply
    10,372.80x = 15,559.17 × 2,581.61
  4. Step 4: Simplify right side
    10,372.80x = 40,167,708.86
  5. Step 5: Solve for x
    x = 40,167,708.86/10,372.80
  6. Step 6: Final answer
    x = 3,872.41

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