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Finding the Fourth Proportional to 38,998.40, 58,400.40 and 37,248.80

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Solution

The fourth proportional to 38,998.40, 58,400.40 and 37,248.80 is: 55,780.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,998.40 : 58,400.40 = 37,248.80 : x
  2. Step 2: Convert to fraction form
    38,998.40/58,400.40 = 37,248.80/x
  3. Step 3: Cross multiply
    38,998.40x = 58,400.40 × 37,248.80
  4. Step 4: Simplify right side
    38,998.40x = 2,175,344,819.52
  5. Step 5: Solve for x
    x = 2,175,344,819.52/38,998.40
  6. Step 6: Final answer
    x = 55,780.36

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.