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Finding the Third Proportional to 3,260 and 4,268

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Solution

The third proportional to 3,260 and 4,268 is: 5,587.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260 : 4,268 = 4,268 : x
  2. Step 2: Convert to fraction form
    3,260/4,268 = 4,268/x
  3. Step 3: Cross multiply
    3,260x = 4,268 × 4,268
  4. Step 4: Simplify right side
    3,260x = 18,215,824
  5. Step 5: Solve for x
    x = 18,215,824/3,260
  6. Step 6: Final answer
    x = 5,587.68

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.