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Finding the Fourth Proportional to 57,292.80, 85,957.43 and 36,363.21

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Solution

The fourth proportional to 57,292.80, 85,957.43 and 36,363.21 is: 54,556.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,292.80 : 85,957.43 = 36,363.21 : x
  2. Step 2: Convert to fraction form
    57,292.80/85,957.43 = 36,363.21/x
  3. Step 3: Cross multiply
    57,292.80x = 85,957.43 × 36,363.21
  4. Step 4: Simplify right side
    57,292.80x = 3,125,687,896.33
  5. Step 5: Solve for x
    x = 3,125,687,896.33/57,292.80
  6. Step 6: Final answer
    x = 54,556.38

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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.