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Finding the Fourth Proportional to 65,909.50, 98,876.67 and 26,469.70

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Solution

The fourth proportional to 65,909.50, 98,876.67 and 26,469.70 is: 39,709.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,909.50 : 98,876.67 = 26,469.70 : x
  2. Step 2: Convert to fraction form
    65,909.50/98,876.67 = 26,469.70/x
  3. Step 3: Cross multiply
    65,909.50x = 98,876.67 × 26,469.70
  4. Step 4: Simplify right side
    65,909.50x = 2,617,235,791.90
  5. Step 5: Solve for x
    x = 2,617,235,791.90/65,909.50
  6. Step 6: Final answer
    x = 39,709.54

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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.