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Finding the Third Proportional to 12,879 and 27,684

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Solution

The third proportional to 12,879 and 27,684 is: 59,508.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879 : 27,684 = 27,684 : x
  2. Step 2: Convert to fraction form
    12,879/27,684 = 27,684/x
  3. Step 3: Cross multiply
    12,879x = 27,684 × 27,684
  4. Step 4: Simplify right side
    12,879x = 766,403,856
  5. Step 5: Solve for x
    x = 766,403,856/12,879
  6. Step 6: Final answer
    x = 59,508.03

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.