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Finding the Fourth Proportional to 57,493.10, 86,253.99 and 20,053.70

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Solution

The fourth proportional to 57,493.10, 86,253.99 and 20,053.70 is: 30,085.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,493.10 : 86,253.99 = 20,053.70 : x
  2. Step 2: Convert to fraction form
    57,493.10/86,253.99 = 20,053.70/x
  3. Step 3: Cross multiply
    57,493.10x = 86,253.99 × 20,053.70
  4. Step 4: Simplify right side
    57,493.10x = 1,729,711,854.90
  5. Step 5: Solve for x
    x = 1,729,711,854.90/57,493.10
  6. Step 6: Final answer
    x = 30,085.56

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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.