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Finding the Third Proportional to 8,940.75 and 19,632

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Solution

The third proportional to 8,940.75 and 19,632 is: 43,107.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.75 : 19,632 = 19,632 : x
  2. Step 2: Convert to fraction form
    8,940.75/19,632 = 19,632/x
  3. Step 3: Cross multiply
    8,940.75x = 19,632 × 19,632
  4. Step 4: Simplify right side
    8,940.75x = 385,415,424
  5. Step 5: Solve for x
    x = 385,415,424/8,940.75
  6. Step 6: Final answer
    x = 43,107.73

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.