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Finding the Third Proportional to 3,888 and 5,103

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Solution

The third proportional to 3,888 and 5,103 is: 6,697.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888 : 5,103 = 5,103 : x
  2. Step 2: Convert to fraction form
    3,888/5,103 = 5,103/x
  3. Step 3: Cross multiply
    3,888x = 5,103 × 5,103
  4. Step 4: Simplify right side
    3,888x = 26,040,609
  5. Step 5: Solve for x
    x = 26,040,609/3,888
  6. Step 6: Final answer
    x = 6,697.69

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.