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Finding the Third Proportional to 6,839 and 9,676

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Solution

The third proportional to 6,839 and 9,676 is: 13,689.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,839 : 9,676 = 9,676 : x
  2. Step 2: Convert to fraction form
    6,839/9,676 = 9,676/x
  3. Step 3: Cross multiply
    6,839x = 9,676 × 9,676
  4. Step 4: Simplify right side
    6,839x = 93,624,976
  5. Step 5: Solve for x
    x = 93,624,976/6,839
  6. Step 6: Final answer
    x = 13,689.86

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.