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Finding the Third Proportional to 13,779 and 29,907

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Solution

The third proportional to 13,779 and 29,907 is: 64,912.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779 : 29,907 = 29,907 : x
  2. Step 2: Convert to fraction form
    13,779/29,907 = 29,907/x
  3. Step 3: Cross multiply
    13,779x = 29,907 × 29,907
  4. Step 4: Simplify right side
    13,779x = 894,428,649
  5. Step 5: Solve for x
    x = 894,428,649/13,779
  6. Step 6: Final answer
    x = 64,912.45

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.