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Finding the Fourth Proportional to 63,545.87, 87,696.95 and 38,403.47

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Solution

The fourth proportional to 63,545.87, 87,696.95 and 38,403.47 is: 52,998.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,545.87 : 87,696.95 = 38,403.47 : x
  2. Step 2: Convert to fraction form
    63,545.87/87,696.95 = 38,403.47/x
  3. Step 3: Cross multiply
    63,545.87x = 87,696.95 × 38,403.47
  4. Step 4: Simplify right side
    63,545.87x = 3,367,866,557.91
  5. Step 5: Solve for x
    x = 3,367,866,557.91/63,545.87
  6. Step 6: Final answer
    x = 52,998.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.