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Finding the Third Proportional to 5,471 and 8,181

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Solution

The third proportional to 5,471 and 8,181 is: 12,233.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,471 : 8,181 = 8,181 : x
  2. Step 2: Convert to fraction form
    5,471/8,181 = 8,181/x
  3. Step 3: Cross multiply
    5,471x = 8,181 × 8,181
  4. Step 4: Simplify right side
    5,471x = 66,928,761
  5. Step 5: Solve for x
    x = 66,928,761/5,471
  6. Step 6: Final answer
    x = 12,233.37

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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.