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Finding the Fourth Proportional to 29,067.58, 40,114.14 and 20,584.90

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Solution

The fourth proportional to 29,067.58, 40,114.14 and 20,584.90 is: 28,407.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,067.58 : 40,114.14 = 20,584.90 : x
  2. Step 2: Convert to fraction form
    29,067.58/40,114.14 = 20,584.90/x
  3. Step 3: Cross multiply
    29,067.58x = 40,114.14 × 20,584.90
  4. Step 4: Simplify right side
    29,067.58x = 825,745,560.49
  5. Step 5: Solve for x
    x = 825,745,560.49/29,067.58
  6. Step 6: Final answer
    x = 28,407.78

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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.