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Finding the Third Proportional to 18,879 and 26,649

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Solution

The third proportional to 18,879 and 26,649 is: 37,616.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,879 : 26,649 = 26,649 : x
  2. Step 2: Convert to fraction form
    18,879/26,649 = 26,649/x
  3. Step 3: Cross multiply
    18,879x = 26,649 × 26,649
  4. Step 4: Simplify right side
    18,879x = 710,169,201
  5. Step 5: Solve for x
    x = 710,169,201/18,879
  6. Step 6: Final answer
    x = 37,616.89

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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.