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Finding the Fourth Proportional to 66,891.92, 100,353.24 and 22,517.48

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Solution

The fourth proportional to 66,891.92, 100,353.24 and 22,517.48 is: 33,781.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,891.92 : 100,353.24 = 22,517.48 : x
  2. Step 2: Convert to fraction form
    66,891.92/100,353.24 = 22,517.48/x
  3. Step 3: Cross multiply
    66,891.92x = 100,353.24 × 22,517.48
  4. Step 4: Simplify right side
    66,891.92x = 2,259,702,325.52
  5. Step 5: Solve for x
    x = 2,259,702,325.52/66,891.92
  6. Step 6: Final answer
    x = 33,781.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.