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Finding the Third Proportional to 3,262.50 and 8,115.75

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Solution

The third proportional to 3,262.50 and 8,115.75 is: 20,188.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,262.50 : 8,115.75 = 8,115.75 : x
  2. Step 2: Convert to fraction form
    3,262.50/8,115.75 = 8,115.75/x
  3. Step 3: Cross multiply
    3,262.50x = 8,115.75 × 8,115.75
  4. Step 4: Simplify right side
    3,262.50x = 65,865,398.06
  5. Step 5: Solve for x
    x = 65,865,398.06/3,262.50
  6. Step 6: Final answer
    x = 20,188.63

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Why These Related Problems?

These problems maintain the same ratio (2.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.