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Finding the Third Proportional to 20,067.75 and 31,059

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Solution

The third proportional to 20,067.75 and 31,059 is: 48,070.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,067.75 : 31,059 = 31,059 : x
  2. Step 2: Convert to fraction form
    20,067.75/31,059 = 31,059/x
  3. Step 3: Cross multiply
    20,067.75x = 31,059 × 31,059
  4. Step 4: Simplify right side
    20,067.75x = 964,661,481
  5. Step 5: Solve for x
    x = 964,661,481/20,067.75
  6. Step 6: Final answer
    x = 48,070.24

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.