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Finding the Fourth Proportional to 69,394.08, 95,761.71 and 39,178.92

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Solution

The fourth proportional to 69,394.08, 95,761.71 and 39,178.92 is: 54,065.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,394.08 : 95,761.71 = 39,178.92 : x
  2. Step 2: Convert to fraction form
    69,394.08/95,761.71 = 39,178.92/x
  3. Step 3: Cross multiply
    69,394.08x = 95,761.71 × 39,178.92
  4. Step 4: Simplify right side
    69,394.08x = 3,751,840,375.15
  5. Step 5: Solve for x
    x = 3,751,840,375.15/69,394.08
  6. Step 6: Final answer
    x = 54,065.71

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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.