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Finding the Fourth Proportional to 18,610.59, 27,916.25 and 8,744.43

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Solution

The fourth proportional to 18,610.59, 27,916.25 and 8,744.43 is: 13,116.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,610.59 : 27,916.25 = 8,744.43 : x
  2. Step 2: Convert to fraction form
    18,610.59/27,916.25 = 8,744.43/x
  3. Step 3: Cross multiply
    18,610.59x = 27,916.25 × 8,744.43
  4. Step 4: Simplify right side
    18,610.59x = 244,111,650.27
  5. Step 5: Solve for x
    x = 244,111,650.27/18,610.59
  6. Step 6: Final answer
    x = 13,116.81

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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.