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Finding the Third Proportional to 9,625 and 20,731

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Solution

The third proportional to 9,625 and 20,731 is: 44,651.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,625 : 20,731 = 20,731 : x
  2. Step 2: Convert to fraction form
    9,625/20,731 = 20,731/x
  3. Step 3: Cross multiply
    9,625x = 20,731 × 20,731
  4. Step 4: Simplify right side
    9,625x = 429,774,361
  5. Step 5: Solve for x
    x = 429,774,361/9,625
  6. Step 6: Final answer
    x = 44,651.88

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.