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Finding the Fourth Proportional to 69,166.49, 95,458.89 and 38,957.78

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Solution

The fourth proportional to 69,166.49, 95,458.89 and 38,957.78 is: 53,766.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,166.49 : 95,458.89 = 38,957.78 : x
  2. Step 2: Convert to fraction form
    69,166.49/95,458.89 = 38,957.78/x
  3. Step 3: Cross multiply
    69,166.49x = 95,458.89 × 38,957.78
  4. Step 4: Simplify right side
    69,166.49x = 3,718,866,435.66
  5. Step 5: Solve for x
    x = 3,718,866,435.66/69,166.49
  6. Step 6: Final answer
    x = 53,766.88

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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.