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Finding the Third Proportional to 18,533 and 39,975

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Solution

The third proportional to 18,533 and 39,975 is: 86,224.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,533 : 39,975 = 39,975 : x
  2. Step 2: Convert to fraction form
    18,533/39,975 = 39,975/x
  3. Step 3: Cross multiply
    18,533x = 39,975 × 39,975
  4. Step 4: Simplify right side
    18,533x = 1,598,000,625
  5. Step 5: Solve for x
    x = 1,598,000,625/18,533
  6. Step 6: Final answer
    x = 86,224.61

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.