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Finding the Fourth Proportional to 57,854.80, 86,609.40 and 34,469.20

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Solution

The fourth proportional to 57,854.80, 86,609.40 and 34,469.20 is: 51,600.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,854.80 : 86,609.40 = 34,469.20 : x
  2. Step 2: Convert to fraction form
    57,854.80/86,609.40 = 34,469.20/x
  3. Step 3: Cross multiply
    57,854.80x = 86,609.40 × 34,469.20
  4. Step 4: Simplify right side
    57,854.80x = 2,985,356,730.48
  5. Step 5: Solve for x
    x = 2,985,356,730.48/57,854.80
  6. Step 6: Final answer
    x = 51,600.85

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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.