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Finding the Third Proportional to 6,917 and 10,395

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Solution

The third proportional to 6,917 and 10,395 is: 15,621.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,917 : 10,395 = 10,395 : x
  2. Step 2: Convert to fraction form
    6,917/10,395 = 10,395/x
  3. Step 3: Cross multiply
    6,917x = 10,395 × 10,395
  4. Step 4: Simplify right side
    6,917x = 108,056,025
  5. Step 5: Solve for x
    x = 108,056,025/6,917
  6. Step 6: Final answer
    x = 15,621.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.