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Finding the Fourth Proportional to 36,456.20, 54,708.60 and 16,724.60

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Solution

The fourth proportional to 36,456.20, 54,708.60 and 16,724.60 is: 25,098.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,456.20 : 54,708.60 = 16,724.60 : x
  2. Step 2: Convert to fraction form
    36,456.20/54,708.60 = 16,724.60/x
  3. Step 3: Cross multiply
    36,456.20x = 54,708.60 × 16,724.60
  4. Step 4: Simplify right side
    36,456.20x = 914,979,451.56
  5. Step 5: Solve for x
    x = 914,979,451.56/36,456.20
  6. Step 6: Final answer
    x = 25,098.05

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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.