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Finding the Fourth Proportional to 55,472.40, 83,229.37 and 28,801.74

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Solution

The fourth proportional to 55,472.40, 83,229.37 and 28,801.74 is: 43,213.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,472.40 : 83,229.37 = 28,801.74 : x
  2. Step 2: Convert to fraction form
    55,472.40/83,229.37 = 28,801.74/x
  3. Step 3: Cross multiply
    55,472.40x = 83,229.37 × 28,801.74
  4. Step 4: Simplify right side
    55,472.40x = 2,397,150,675.10
  5. Step 5: Solve for x
    x = 2,397,150,675.10/55,472.40
  6. Step 6: Final answer
    x = 43,213.39

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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.