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Finding the Fourth Proportional to 83,902.80, 125,854.20 and 34,006.80

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Solution

The fourth proportional to 83,902.80, 125,854.20 and 34,006.80 is: 51,010.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,902.80 : 125,854.20 = 34,006.80 : x
  2. Step 2: Convert to fraction form
    83,902.80/125,854.20 = 34,006.80/x
  3. Step 3: Cross multiply
    83,902.80x = 125,854.20 × 34,006.80
  4. Step 4: Simplify right side
    83,902.80x = 4,279,898,608.56
  5. Step 5: Solve for x
    x = 4,279,898,608.56/83,902.80
  6. Step 6: Final answer
    x = 51,010.20

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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.