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Finding the Fourth Proportional to 67,882.29, 101,790.55 and 39,811.54

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Solution

The fourth proportional to 67,882.29, 101,790.55 and 39,811.54 is: 59,698.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,882.29 : 101,790.55 = 39,811.54 : x
  2. Step 2: Convert to fraction form
    67,882.29/101,790.55 = 39,811.54/x
  3. Step 3: Cross multiply
    67,882.29x = 101,790.55 × 39,811.54
  4. Step 4: Simplify right side
    67,882.29x = 4,052,438,552.95
  5. Step 5: Solve for x
    x = 4,052,438,552.95/67,882.29
  6. Step 6: Final answer
    x = 59,698.02

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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.