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Finding the Third Proportional to 2,720 and 4,837

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Solution

The third proportional to 2,720 and 4,837 is: 8,601.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720 : 4,837 = 4,837 : x
  2. Step 2: Convert to fraction form
    2,720/4,837 = 4,837/x
  3. Step 3: Cross multiply
    2,720x = 4,837 × 4,837
  4. Step 4: Simplify right side
    2,720x = 23,396,569
  5. Step 5: Solve for x
    x = 23,396,569/2,720
  6. Step 6: Final answer
    x = 8,601.68

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.