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Finding the Fourth Proportional to 40,481.96, 55,865.39 and 22,578.12

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Solution

The fourth proportional to 40,481.96, 55,865.39 and 22,578.12 is: 31,157.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,481.96 : 55,865.39 = 22,578.12 : x
  2. Step 2: Convert to fraction form
    40,481.96/55,865.39 = 22,578.12/x
  3. Step 3: Cross multiply
    40,481.96x = 55,865.39 × 22,578.12
  4. Step 4: Simplify right side
    40,481.96x = 1,261,335,366.38
  5. Step 5: Solve for x
    x = 1,261,335,366.38/40,481.96
  6. Step 6: Final answer
    x = 31,157.97

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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.