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Finding the Fourth Proportional to 61,049.92, 84,229.76 and 34,188.80

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Solution

The fourth proportional to 61,049.92, 84,229.76 and 34,188.80 is: 47,169.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,049.92 : 84,229.76 = 34,188.80 : x
  2. Step 2: Convert to fraction form
    61,049.92/84,229.76 = 34,188.80/x
  3. Step 3: Cross multiply
    61,049.92x = 84,229.76 × 34,188.80
  4. Step 4: Simplify right side
    61,049.92x = 2,879,714,418.69
  5. Step 5: Solve for x
    x = 2,879,714,418.69/61,049.92
  6. Step 6: Final answer
    x = 47,169.83

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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.