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Finding the Fourth Proportional to 40,391.97, 55,742.74 and 22,488.10

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Solution

The fourth proportional to 40,391.97, 55,742.74 and 22,488.10 is: 31,034.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,391.97 : 55,742.74 = 22,488.10 : x
  2. Step 2: Convert to fraction form
    40,391.97/55,742.74 = 22,488.10/x
  3. Step 3: Cross multiply
    40,391.97x = 55,742.74 × 22,488.10
  4. Step 4: Simplify right side
    40,391.97x = 1,253,548,115.82
  5. Step 5: Solve for x
    x = 1,253,548,115.82/40,391.97
  6. Step 6: Final answer
    x = 31,034.59

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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.