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Finding the Third Proportional to 21,874 and 32,787

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Solution

The third proportional to 21,874 and 32,787 is: 49,144.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,874 : 32,787 = 32,787 : x
  2. Step 2: Convert to fraction form
    21,874/32,787 = 32,787/x
  3. Step 3: Cross multiply
    21,874x = 32,787 × 32,787
  4. Step 4: Simplify right side
    21,874x = 1,074,987,369
  5. Step 5: Solve for x
    x = 1,074,987,369/21,874
  6. Step 6: Final answer
    x = 49,144.53

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.