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Finding the Third Proportional to 693 and 1,233

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Solution

The third proportional to 693 and 1,233 is: 2,193.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    693 : 1,233 = 1,233 : x
  2. Step 2: Convert to fraction form
    693/1,233 = 1,233/x
  3. Step 3: Cross multiply
    693x = 1,233 × 1,233
  4. Step 4: Simplify right side
    693x = 1,520,289
  5. Step 5: Solve for x
    x = 1,520,289/693
  6. Step 6: Final answer
    x = 2,193.78

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.