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Finding the Fourth Proportional to 57,484.80, 86,227.23 and 15,931.80

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Solution

The fourth proportional to 57,484.80, 86,227.23 and 15,931.80 is: 23,897.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,484.80 : 86,227.23 = 15,931.80 : x
  2. Step 2: Convert to fraction form
    57,484.80/86,227.23 = 15,931.80/x
  3. Step 3: Cross multiply
    57,484.80x = 86,227.23 × 15,931.80
  4. Step 4: Simplify right side
    57,484.80x = 1,373,754,982.91
  5. Step 5: Solve for x
    x = 1,373,754,982.91/57,484.80
  6. Step 6: Final answer
    x = 23,897.71

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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.