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Finding the Fourth Proportional to 65,755.96, 98,658.78 and 39,479.02

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Solution

The fourth proportional to 65,755.96, 98,658.78 and 39,479.02 is: 59,233.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,755.96 : 98,658.78 = 39,479.02 : x
  2. Step 2: Convert to fraction form
    65,755.96/98,658.78 = 39,479.02/x
  3. Step 3: Cross multiply
    65,755.96x = 98,658.78 × 39,479.02
  4. Step 4: Simplify right side
    65,755.96x = 3,894,951,948.80
  5. Step 5: Solve for x
    x = 3,894,951,948.80/65,755.96
  6. Step 6: Final answer
    x = 59,233.44

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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.