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Finding the Third Proportional to 3,755 and 5,611

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Solution

The third proportional to 3,755 and 5,611 is: 8,384.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755 : 5,611 = 5,611 : x
  2. Step 2: Convert to fraction form
    3,755/5,611 = 5,611/x
  3. Step 3: Cross multiply
    3,755x = 5,611 × 5,611
  4. Step 4: Simplify right side
    3,755x = 31,483,321
  5. Step 5: Solve for x
    x = 31,483,321/3,755
  6. Step 6: Final answer
    x = 8,384.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.