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Finding the Fourth Proportional to 18,531.53, 27,797.11 and 8,008.98

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Solution

The fourth proportional to 18,531.53, 27,797.11 and 8,008.98 is: 12,013.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,531.53 : 27,797.11 = 8,008.98 : x
  2. Step 2: Convert to fraction form
    18,531.53/27,797.11 = 8,008.98/x
  3. Step 3: Cross multiply
    18,531.53x = 27,797.11 × 8,008.98
  4. Step 4: Simplify right side
    18,531.53x = 222,626,498.05
  5. Step 5: Solve for x
    x = 222,626,498.05/18,531.53
  6. Step 6: Final answer
    x = 12,013.39

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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.