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Finding the Fourth Proportional to 18,581.31, 27,876.22 and 8,053.10

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Solution

The fourth proportional to 18,581.31, 27,876.22 and 8,053.10 is: 12,081.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581.31 : 27,876.22 = 8,053.10 : x
  2. Step 2: Convert to fraction form
    18,581.31/27,876.22 = 8,053.10/x
  3. Step 3: Cross multiply
    18,581.31x = 27,876.22 × 8,053.10
  4. Step 4: Simplify right side
    18,581.31x = 224,489,932.30
  5. Step 5: Solve for x
    x = 224,489,932.30/18,581.31
  6. Step 6: Final answer
    x = 12,081.49

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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.