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Finding the Third Proportional to 2,008 and 3,208

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Solution

The third proportional to 2,008 and 3,208 is: 5,125.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,008 : 3,208 = 3,208 : x
  2. Step 2: Convert to fraction form
    2,008/3,208 = 3,208/x
  3. Step 3: Cross multiply
    2,008x = 3,208 × 3,208
  4. Step 4: Simplify right side
    2,008x = 10,291,264
  5. Step 5: Solve for x
    x = 10,291,264/2,008
  6. Step 6: Final answer
    x = 5,125.13

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.