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Finding the Third Proportional to 7,676 and 10,863

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Solution

The third proportional to 7,676 and 10,863 is: 15,373.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,676 : 10,863 = 10,863 : x
  2. Step 2: Convert to fraction form
    7,676/10,863 = 10,863/x
  3. Step 3: Cross multiply
    7,676x = 10,863 × 10,863
  4. Step 4: Simplify right side
    7,676x = 118,004,769
  5. Step 5: Solve for x
    x = 118,004,769/7,676
  6. Step 6: Final answer
    x = 15,373.21

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.