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Finding the Third Proportional to 4,879 and 7,567

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Solution

The third proportional to 4,879 and 7,567 is: 11,735.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879 : 7,567 = 7,567 : x
  2. Step 2: Convert to fraction form
    4,879/7,567 = 7,567/x
  3. Step 3: Cross multiply
    4,879x = 7,567 × 7,567
  4. Step 4: Simplify right side
    4,879x = 57,259,489
  5. Step 5: Solve for x
    x = 57,259,489/4,879
  6. Step 6: Final answer
    x = 11,735.91

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.