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Finding the Fourth Proportional to 69,098.57, 103,481.76 and 39,426.45

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Solution

The fourth proportional to 69,098.57, 103,481.76 and 39,426.45 is: 59,044.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,098.57 : 103,481.76 = 39,426.45 : x
  2. Step 2: Convert to fraction form
    69,098.57/103,481.76 = 39,426.45/x
  3. Step 3: Cross multiply
    69,098.57x = 103,481.76 × 39,426.45
  4. Step 4: Simplify right side
    69,098.57x = 4,079,918,436.55
  5. Step 5: Solve for x
    x = 4,079,918,436.55/69,098.57
  6. Step 6: Final answer
    x = 59,044.90

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1.5x scale

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.