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Finding the Third Proportional to 9,967.50 and 20,400.75

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Solution

The third proportional to 9,967.50 and 20,400.75 is: 41,754.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,967.50 : 20,400.75 = 20,400.75 : x
  2. Step 2: Convert to fraction form
    9,967.50/20,400.75 = 20,400.75/x
  3. Step 3: Cross multiply
    9,967.50x = 20,400.75 × 20,400.75
  4. Step 4: Simplify right side
    9,967.50x = 416,190,600.56
  5. Step 5: Solve for x
    x = 416,190,600.56/9,967.50
  6. Step 6: Final answer
    x = 41,754.76

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.