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Finding the Third Proportional to 3,291 and 5,874

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Solution

The third proportional to 3,291 and 5,874 is: 10,484.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291 : 5,874 = 5,874 : x
  2. Step 2: Convert to fraction form
    3,291/5,874 = 5,874/x
  3. Step 3: Cross multiply
    3,291x = 5,874 × 5,874
  4. Step 4: Simplify right side
    3,291x = 34,503,876
  5. Step 5: Solve for x
    x = 34,503,876/3,291
  6. Step 6: Final answer
    x = 10,484.31

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.