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Finding the Third Proportional to 2,208 and 3,896

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Solution

The third proportional to 2,208 and 3,896 is: 6,874.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208 : 3,896 = 3,896 : x
  2. Step 2: Convert to fraction form
    2,208/3,896 = 3,896/x
  3. Step 3: Cross multiply
    2,208x = 3,896 × 3,896
  4. Step 4: Simplify right side
    2,208x = 15,178,816
  5. Step 5: Solve for x
    x = 15,178,816/2,208
  6. Step 6: Final answer
    x = 6,874.46

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.