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Finding the Third Proportional to 8,220.50 and 17,755

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Solution

The third proportional to 8,220.50 and 17,755 is: 38,348.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.50 : 17,755 = 17,755 : x
  2. Step 2: Convert to fraction form
    8,220.50/17,755 = 17,755/x
  3. Step 3: Cross multiply
    8,220.50x = 17,755 × 17,755
  4. Step 4: Simplify right side
    8,220.50x = 315,240,025
  5. Step 5: Solve for x
    x = 315,240,025/8,220.50
  6. Step 6: Final answer
    x = 38,348.04

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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.