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Finding the Fourth Proportional to 47,569.92, 71,190.60 and 38,187.60

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Solution

The fourth proportional to 47,569.92, 71,190.60 and 38,187.60 is: 57,149.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,569.92 : 71,190.60 = 38,187.60 : x
  2. Step 2: Convert to fraction form
    47,569.92/71,190.60 = 38,187.60/x
  3. Step 3: Cross multiply
    47,569.92x = 71,190.60 × 38,187.60
  4. Step 4: Simplify right side
    47,569.92x = 2,718,598,156.56
  5. Step 5: Solve for x
    x = 2,718,598,156.56/47,569.92
  6. Step 6: Final answer
    x = 57,149.52

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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.