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Finding the Fourth Proportional to 37,331, 51,517.86 and 20,565.08

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Solution

The fourth proportional to 37,331, 51,517.86 and 20,565.08 is: 28,380.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,331 : 51,517.86 = 20,565.08 : x
  2. Step 2: Convert to fraction form
    37,331/51,517.86 = 20,565.08/x
  3. Step 3: Cross multiply
    37,331x = 51,517.86 × 20,565.08
  4. Step 4: Simplify right side
    37,331x = 1,059,468,912.33
  5. Step 5: Solve for x
    x = 1,059,468,912.33/37,331
  6. Step 6: Final answer
    x = 28,380.41

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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.