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Finding the Third Proportional to 6,686 and 9,422

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Solution

The third proportional to 6,686 and 9,422 is: 13,277.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,686 : 9,422 = 9,422 : x
  2. Step 2: Convert to fraction form
    6,686/9,422 = 9,422/x
  3. Step 3: Cross multiply
    6,686x = 9,422 × 9,422
  4. Step 4: Simplify right side
    6,686x = 88,774,084
  5. Step 5: Solve for x
    x = 88,774,084/6,686
  6. Step 6: Final answer
    x = 13,277.61

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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.