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Finding the Third Proportional to 993 and 1,839

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Solution

The third proportional to 993 and 1,839 is: 3,405.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    993 : 1,839 = 1,839 : x
  2. Step 2: Convert to fraction form
    993/1,839 = 1,839/x
  3. Step 3: Cross multiply
    993x = 1,839 × 1,839
  4. Step 4: Simplify right side
    993x = 3,381,921
  5. Step 5: Solve for x
    x = 3,381,921/993
  6. Step 6: Final answer
    x = 3,405.76

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.