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Finding the Fourth Proportional to 57,540.76, 86,362.56 and 29,479.92

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Solution

The fourth proportional to 57,540.76, 86,362.56 and 29,479.92 is: 44,246.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,540.76 : 86,362.56 = 29,479.92 : x
  2. Step 2: Convert to fraction form
    57,540.76/86,362.56 = 29,479.92/x
  3. Step 3: Cross multiply
    57,540.76x = 86,362.56 × 29,479.92
  4. Step 4: Simplify right side
    57,540.76x = 2,545,961,359.80
  5. Step 5: Solve for x
    x = 2,545,961,359.80/57,540.76
  6. Step 6: Final answer
    x = 44,246.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.