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Finding the Third Proportional to 11,220 and 16,611

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Solution

The third proportional to 11,220 and 16,611 is: 24,592.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220 : 16,611 = 16,611 : x
  2. Step 2: Convert to fraction form
    11,220/16,611 = 16,611/x
  3. Step 3: Cross multiply
    11,220x = 16,611 × 16,611
  4. Step 4: Simplify right side
    11,220x = 275,925,321
  5. Step 5: Solve for x
    x = 275,925,321/11,220
  6. Step 6: Final answer
    x = 24,592.27

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.