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Finding the Fourth Proportional to 60,471.76, 83,421.96 and 39,257.68

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Solution

The fourth proportional to 60,471.76, 83,421.96 and 39,257.68 is: 54,156.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,471.76 : 83,421.96 = 39,257.68 : x
  2. Step 2: Convert to fraction form
    60,471.76/83,421.96 = 39,257.68/x
  3. Step 3: Cross multiply
    60,471.76x = 83,421.96 × 39,257.68
  4. Step 4: Simplify right side
    60,471.76x = 3,274,952,610.65
  5. Step 5: Solve for x
    x = 3,274,952,610.65/60,471.76
  6. Step 6: Final answer
    x = 54,156.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.