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Finding the Fourth Proportional to 83,708.10, 125,452.80 and 33,747.30

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Solution

The fourth proportional to 83,708.10, 125,452.80 and 33,747.30 is: 50,576.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,708.10 : 125,452.80 = 33,747.30 : x
  2. Step 2: Convert to fraction form
    83,708.10/125,452.80 = 33,747.30/x
  3. Step 3: Cross multiply
    83,708.10x = 125,452.80 × 33,747.30
  4. Step 4: Simplify right side
    83,708.10x = 4,233,693,277.44
  5. Step 5: Solve for x
    x = 4,233,693,277.44/83,708.10
  6. Step 6: Final answer
    x = 50,576.87

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1.5x scale

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.