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Finding the Fourth Proportional to 38,799.88, 58,204.38 and 13,843.48

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Solution

The fourth proportional to 38,799.88, 58,204.38 and 13,843.48 is: 20,766.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,799.88 : 58,204.38 = 13,843.48 : x
  2. Step 2: Convert to fraction form
    38,799.88/58,204.38 = 13,843.48/x
  3. Step 3: Cross multiply
    38,799.88x = 58,204.38 × 13,843.48
  4. Step 4: Simplify right side
    38,799.88x = 805,751,170.44
  5. Step 5: Solve for x
    x = 805,751,170.44/38,799.88
  6. Step 6: Final answer
    x = 20,766.85

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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.