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Finding the Fourth Proportional to 69,220.20, 103,791.90 and 27,620.20

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Solution

The fourth proportional to 69,220.20, 103,791.90 and 27,620.20 is: 41,414.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,220.20 : 103,791.90 = 27,620.20 : x
  2. Step 2: Convert to fraction form
    69,220.20/103,791.90 = 27,620.20/x
  3. Step 3: Cross multiply
    69,220.20x = 103,791.90 × 27,620.20
  4. Step 4: Simplify right side
    69,220.20x = 2,866,753,036.38
  5. Step 5: Solve for x
    x = 2,866,753,036.38/69,220.20
  6. Step 6: Final answer
    x = 41,414.98

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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.