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Finding the Third Proportional to 13,626 and 18,764

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Solution

The third proportional to 13,626 and 18,764 is: 25,839.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626 : 18,764 = 18,764 : x
  2. Step 2: Convert to fraction form
    13,626/18,764 = 18,764/x
  3. Step 3: Cross multiply
    13,626x = 18,764 × 18,764
  4. Step 4: Simplify right side
    13,626x = 352,087,696
  5. Step 5: Solve for x
    x = 352,087,696/13,626
  6. Step 6: Final answer
    x = 25,839.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.