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Finding the Third Proportional to 721.41 and 1,632.66

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Solution

The third proportional to 721.41 and 1,632.66 is: 3,694.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    721.41 : 1,632.66 = 1,632.66 : x
  2. Step 2: Convert to fraction form
    721.41/1,632.66 = 1,632.66/x
  3. Step 3: Cross multiply
    721.41x = 1,632.66 × 1,632.66
  4. Step 4: Simplify right side
    721.41x = 2,665,566.43
  5. Step 5: Solve for x
    x = 2,665,566.43/721.41
  6. Step 6: Final answer
    x = 3,694.96

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Why These Related Problems?

These problems maintain the same ratio (2.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.