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Finding the Fourth Proportional to 40,356.92, 55,691.71 and 22,451.54

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Solution

The fourth proportional to 40,356.92, 55,691.71 and 22,451.54 is: 30,982.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,356.92 : 55,691.71 = 22,451.54 : x
  2. Step 2: Convert to fraction form
    40,356.92/55,691.71 = 22,451.54/x
  3. Step 3: Cross multiply
    40,356.92x = 55,691.71 × 22,451.54
  4. Step 4: Simplify right side
    40,356.92x = 1,250,364,654.73
  5. Step 5: Solve for x
    x = 1,250,364,654.73/40,356.92
  6. Step 6: Final answer
    x = 30,982.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.