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Finding the Fourth Proportional to 57,960.80, 86,876.40 and 24,675.20

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Solution

The fourth proportional to 57,960.80, 86,876.40 and 24,675.20 is: 36,985.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,960.80 : 86,876.40 = 24,675.20 : x
  2. Step 2: Convert to fraction form
    57,960.80/86,876.40 = 24,675.20/x
  3. Step 3: Cross multiply
    57,960.80x = 86,876.40 × 24,675.20
  4. Step 4: Simplify right side
    57,960.80x = 2,143,692,545.28
  5. Step 5: Solve for x
    x = 2,143,692,545.28/57,960.80
  6. Step 6: Final answer
    x = 36,985.21

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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.