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Finding the Third Proportional to 18,626 and 25,311

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Solution

The third proportional to 18,626 and 25,311 is: 34,395.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,626 : 25,311 = 25,311 : x
  2. Step 2: Convert to fraction form
    18,626/25,311 = 25,311/x
  3. Step 3: Cross multiply
    18,626x = 25,311 × 25,311
  4. Step 4: Simplify right side
    18,626x = 640,646,721
  5. Step 5: Solve for x
    x = 640,646,721/18,626
  6. Step 6: Final answer
    x = 34,395.29

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.