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Finding the Third Proportional to 552.75 and 843

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Solution

The third proportional to 552.75 and 843 is: 1,285.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.75 : 843 = 843 : x
  2. Step 2: Convert to fraction form
    552.75/843 = 843/x
  3. Step 3: Cross multiply
    552.75x = 843 × 843
  4. Step 4: Simplify right side
    552.75x = 710,649
  5. Step 5: Solve for x
    x = 710,649/552.75
  6. Step 6: Final answer
    x = 1,285.66

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.