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Finding the Fourth Proportional to 55,198.54, 82,811.80 and 15,755.80

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Solution

The fourth proportional to 55,198.54, 82,811.80 and 15,755.80 is: 23,637.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,198.54 : 82,811.80 = 15,755.80 : x
  2. Step 2: Convert to fraction form
    55,198.54/82,811.80 = 15,755.80/x
  3. Step 3: Cross multiply
    55,198.54x = 82,811.80 × 15,755.80
  4. Step 4: Simplify right side
    55,198.54x = 1,304,766,158.44
  5. Step 5: Solve for x
    x = 1,304,766,158.44/55,198.54
  6. Step 6: Final answer
    x = 23,637.69

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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.