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Finding the Third Proportional to 6,831 and 7,695

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Solution

The third proportional to 6,831 and 7,695 is: 8,668.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,831 : 7,695 = 7,695 : x
  2. Step 2: Convert to fraction form
    6,831/7,695 = 7,695/x
  3. Step 3: Cross multiply
    6,831x = 7,695 × 7,695
  4. Step 4: Simplify right side
    6,831x = 59,213,025
  5. Step 5: Solve for x
    x = 59,213,025/6,831
  6. Step 6: Final answer
    x = 8,668.28

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Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.