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Finding the Third Proportional to 4,289 and 6,238

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Solution

The third proportional to 4,289 and 6,238 is: 9,072.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,289 : 6,238 = 6,238 : x
  2. Step 2: Convert to fraction form
    4,289/6,238 = 6,238/x
  3. Step 3: Cross multiply
    4,289x = 6,238 × 6,238
  4. Step 4: Simplify right side
    4,289x = 38,912,644
  5. Step 5: Solve for x
    x = 38,912,644/4,289
  6. Step 6: Final answer
    x = 9,072.66

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.