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Finding the Fourth Proportional to 60,694.60, 90,944.70 and 38,468.20

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Solution

The fourth proportional to 60,694.60, 90,944.70 and 38,468.20 is: 57,640.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,694.60 : 90,944.70 = 38,468.20 : x
  2. Step 2: Convert to fraction form
    60,694.60/90,944.70 = 38,468.20/x
  3. Step 3: Cross multiply
    60,694.60x = 90,944.70 × 38,468.20
  4. Step 4: Simplify right side
    60,694.60x = 3,498,478,908.54
  5. Step 5: Solve for x
    x = 3,498,478,908.54/60,694.60
  6. Step 6: Final answer
    x = 57,640.69

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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.