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Finding the Fourth Proportional to 36,456.80, 54,710.80 and 15,695.20

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Solution

The fourth proportional to 36,456.80, 54,710.80 and 15,695.20 is: 23,553.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,456.80 : 54,710.80 = 15,695.20 : x
  2. Step 2: Convert to fraction form
    36,456.80/54,710.80 = 15,695.20/x
  3. Step 3: Cross multiply
    36,456.80x = 54,710.80 × 15,695.20
  4. Step 4: Simplify right side
    36,456.80x = 858,696,948.16
  5. Step 5: Solve for x
    x = 858,696,948.16/36,456.80
  6. Step 6: Final answer
    x = 23,553.82

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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.