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Finding the Third Proportional to 12,872 and 29,796

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Solution

The third proportional to 12,872 and 29,796 is: 68,971.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,872 : 29,796 = 29,796 : x
  2. Step 2: Convert to fraction form
    12,872/29,796 = 29,796/x
  3. Step 3: Cross multiply
    12,872x = 29,796 × 29,796
  4. Step 4: Simplify right side
    12,872x = 887,801,616
  5. Step 5: Solve for x
    x = 887,801,616/12,872
  6. Step 6: Final answer
    x = 68,971.54

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.