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Finding the Fourth Proportional to 38,572.80, 57,844.80 and 26,851.20

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Solution

The fourth proportional to 38,572.80, 57,844.80 and 26,851.20 is: 40,266.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,572.80 : 57,844.80 = 26,851.20 : x
  2. Step 2: Convert to fraction form
    38,572.80/57,844.80 = 26,851.20/x
  3. Step 3: Cross multiply
    38,572.80x = 57,844.80 × 26,851.20
  4. Step 4: Simplify right side
    38,572.80x = 1,553,202,293.76
  5. Step 5: Solve for x
    x = 1,553,202,293.76/38,572.80
  6. Step 6: Final answer
    x = 40,266.78

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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.