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Finding the Third Proportional to 664.50 and 1,092

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Solution

The third proportional to 664.50 and 1,092 is: 1,794.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    664.50 : 1,092 = 1,092 : x
  2. Step 2: Convert to fraction form
    664.50/1,092 = 1,092/x
  3. Step 3: Cross multiply
    664.50x = 1,092 × 1,092
  4. Step 4: Simplify right side
    664.50x = 1,192,464
  5. Step 5: Solve for x
    x = 1,192,464/664.50
  6. Step 6: Final answer
    x = 1,794.53

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.