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Finding the Third Proportional to 4,976 and 5,424

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Solution

The third proportional to 4,976 and 5,424 is: 5,912.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,976 : 5,424 = 5,424 : x
  2. Step 2: Convert to fraction form
    4,976/5,424 = 5,424/x
  3. Step 3: Cross multiply
    4,976x = 5,424 × 5,424
  4. Step 4: Simplify right side
    4,976x = 29,419,776
  5. Step 5: Solve for x
    x = 29,419,776/4,976
  6. Step 6: Final answer
    x = 5,912.33

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.