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Finding the Fourth Proportional to 22,638.56, 33,959.66 and 8,605.31

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Solution

The fourth proportional to 22,638.56, 33,959.66 and 8,605.31 is: 12,908.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,638.56 : 33,959.66 = 8,605.31 : x
  2. Step 2: Convert to fraction form
    22,638.56/33,959.66 = 8,605.31/x
  3. Step 3: Cross multiply
    22,638.56x = 33,959.66 × 8,605.31
  4. Step 4: Simplify right side
    22,638.56x = 292,233,188.97
  5. Step 5: Solve for x
    x = 292,233,188.97/22,638.56
  6. Step 6: Final answer
    x = 12,908.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.