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Finding the Fourth Proportional to 36,472.80, 54,752.40 and 36,213.60

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Solution

The fourth proportional to 36,472.80, 54,752.40 and 36,213.60 is: 54,363.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,472.80 : 54,752.40 = 36,213.60 : x
  2. Step 2: Convert to fraction form
    36,472.80/54,752.40 = 36,213.60/x
  3. Step 3: Cross multiply
    36,472.80x = 54,752.40 × 36,213.60
  4. Step 4: Simplify right side
    36,472.80x = 1,982,781,512.64
  5. Step 5: Solve for x
    x = 1,982,781,512.64/36,472.80
  6. Step 6: Final answer
    x = 54,363.29

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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.