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Finding the Fourth Proportional to 69,879.92, 96,432.96 and 38,049.44

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Solution

The fourth proportional to 69,879.92, 96,432.96 and 38,049.44 is: 52,507.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,879.92 : 96,432.96 = 38,049.44 : x
  2. Step 2: Convert to fraction form
    69,879.92/96,432.96 = 38,049.44/x
  3. Step 3: Cross multiply
    69,879.92x = 96,432.96 × 38,049.44
  4. Step 4: Simplify right side
    69,879.92x = 3,669,220,125.54
  5. Step 5: Solve for x
    x = 3,669,220,125.54/69,879.92
  6. Step 6: Final answer
    x = 52,507.50

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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.