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Finding the Third Proportional to 2,997 and 5,103

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Solution

The third proportional to 2,997 and 5,103 is: 8,688.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997 : 5,103 = 5,103 : x
  2. Step 2: Convert to fraction form
    2,997/5,103 = 5,103/x
  3. Step 3: Cross multiply
    2,997x = 5,103 × 5,103
  4. Step 4: Simplify right side
    2,997x = 26,040,609
  5. Step 5: Solve for x
    x = 26,040,609/2,997
  6. Step 6: Final answer
    x = 8,688.89

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Why These Related Problems?

These problems maintain the same ratio (1.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.