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Finding the Third Proportional to 6,882 and 11,355

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Solution

The third proportional to 6,882 and 11,355 is: 18,735.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,882 : 11,355 = 11,355 : x
  2. Step 2: Convert to fraction form
    6,882/11,355 = 11,355/x
  3. Step 3: Cross multiply
    6,882x = 11,355 × 11,355
  4. Step 4: Simplify right side
    6,882x = 128,936,025
  5. Step 5: Solve for x
    x = 128,936,025/6,882
  6. Step 6: Final answer
    x = 18,735.26

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.