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Finding the Third Proportional to 7,726 and 11,626

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Solution

The third proportional to 7,726 and 11,626 is: 17,494.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726 : 11,626 = 11,626 : x
  2. Step 2: Convert to fraction form
    7,726/11,626 = 11,626/x
  3. Step 3: Cross multiply
    7,726x = 11,626 × 11,626
  4. Step 4: Simplify right side
    7,726x = 135,163,876
  5. Step 5: Solve for x
    x = 135,163,876/7,726
  6. Step 6: Final answer
    x = 17,494.68

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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.