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Finding the Third Proportional to 7,611 and 16,863

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Solution

The third proportional to 7,611 and 16,863 is: 37,361.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,611 : 16,863 = 16,863 : x
  2. Step 2: Convert to fraction form
    7,611/16,863 = 16,863/x
  3. Step 3: Cross multiply
    7,611x = 16,863 × 16,863
  4. Step 4: Simplify right side
    7,611x = 284,360,769
  5. Step 5: Solve for x
    x = 284,360,769/7,611
  6. Step 6: Final answer
    x = 37,361.81

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.