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Finding the Fourth Proportional to 18,443.25, 27,672.99 and 9,676.11

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Solution

The fourth proportional to 18,443.25, 27,672.99 and 9,676.11 is: 14,518.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443.25 : 27,672.99 = 9,676.11 : x
  2. Step 2: Convert to fraction form
    18,443.25/27,672.99 = 9,676.11/x
  3. Step 3: Cross multiply
    18,443.25x = 27,672.99 × 9,676.11
  4. Step 4: Simplify right side
    18,443.25x = 267,766,895.27
  5. Step 5: Solve for x
    x = 267,766,895.27/18,443.25
  6. Step 6: Final answer
    x = 14,518.42

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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.