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Finding the Third Proportional to 20,796.75 and 25,278.75

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Solution

The third proportional to 20,796.75 and 25,278.75 is: 30,726.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796.75 : 25,278.75 = 25,278.75 : x
  2. Step 2: Convert to fraction form
    20,796.75/25,278.75 = 25,278.75/x
  3. Step 3: Cross multiply
    20,796.75x = 25,278.75 × 25,278.75
  4. Step 4: Simplify right side
    20,796.75x = 639,015,201.56
  5. Step 5: Solve for x
    x = 639,015,201.56/20,796.75
  6. Step 6: Final answer
    x = 30,726.69

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.