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Finding the Third Proportional to 15,505 and 33,907

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Solution

The third proportional to 15,505 and 33,907 is: 74,149.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,505 : 33,907 = 33,907 : x
  2. Step 2: Convert to fraction form
    15,505/33,907 = 33,907/x
  3. Step 3: Cross multiply
    15,505x = 33,907 × 33,907
  4. Step 4: Simplify right side
    15,505x = 1,149,684,649
  5. Step 5: Solve for x
    x = 1,149,684,649/15,505
  6. Step 6: Final answer
    x = 74,149.28

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.