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Finding the Third Proportional to 18,626 and 39,404

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Solution

The third proportional to 18,626 and 39,404 is: 83,360.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,626 : 39,404 = 39,404 : x
  2. Step 2: Convert to fraction form
    18,626/39,404 = 39,404/x
  3. Step 3: Cross multiply
    18,626x = 39,404 × 39,404
  4. Step 4: Simplify right side
    18,626x = 1,552,675,216
  5. Step 5: Solve for x
    x = 1,552,675,216/18,626
  6. Step 6: Final answer
    x = 83,360.64

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.