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Finding the Third Proportional to 3,755.11 and 8,127.21

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Solution

The third proportional to 3,755.11 and 8,127.21 is: 17,589.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755.11 : 8,127.21 = 8,127.21 : x
  2. Step 2: Convert to fraction form
    3,755.11/8,127.21 = 8,127.21/x
  3. Step 3: Cross multiply
    3,755.11x = 8,127.21 × 8,127.21
  4. Step 4: Simplify right side
    3,755.11x = 66,051,557.62
  5. Step 5: Solve for x
    x = 66,051,557.62/3,755.11
  6. Step 6: Final answer
    x = 17,589.78

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.