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Finding the Third Proportional to 3,706 and 7,891

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Solution

The third proportional to 3,706 and 7,891 is: 16,801.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,706 : 7,891 = 7,891 : x
  2. Step 2: Convert to fraction form
    3,706/7,891 = 7,891/x
  3. Step 3: Cross multiply
    3,706x = 7,891 × 7,891
  4. Step 4: Simplify right side
    3,706x = 62,267,881
  5. Step 5: Solve for x
    x = 62,267,881/3,706
  6. Step 6: Final answer
    x = 16,801.91

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.