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Finding the Fourth Proportional to 57,469.68, 86,207.76 and 18,025.92

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Solution

The fourth proportional to 57,469.68, 86,207.76 and 18,025.92 is: 27,039.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,469.68 : 86,207.76 = 18,025.92 : x
  2. Step 2: Convert to fraction form
    57,469.68/86,207.76 = 18,025.92/x
  3. Step 3: Cross multiply
    57,469.68x = 86,207.76 × 18,025.92
  4. Step 4: Simplify right side
    57,469.68x = 1,553,974,185.14
  5. Step 5: Solve for x
    x = 1,553,974,185.14/57,469.68
  6. Step 6: Final answer
    x = 27,039.90

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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.