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Finding the Fourth Proportional to 83,693.88, 125,545.14 and 21,364.92

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Solution

The fourth proportional to 83,693.88, 125,545.14 and 21,364.92 is: 32,048.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,693.88 : 125,545.14 = 21,364.92 : x
  2. Step 2: Convert to fraction form
    83,693.88/125,545.14 = 21,364.92/x
  3. Step 3: Cross multiply
    83,693.88x = 125,545.14 × 21,364.92
  4. Step 4: Simplify right side
    83,693.88x = 2,682,261,872.49
  5. Step 5: Solve for x
    x = 2,682,261,872.49/83,693.88
  6. Step 6: Final answer
    x = 32,048.48

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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.