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Finding the Third Proportional to 1,517 and 3,226

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Solution

The third proportional to 1,517 and 3,226 is: 6,860.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517 : 3,226 = 3,226 : x
  2. Step 2: Convert to fraction form
    1,517/3,226 = 3,226/x
  3. Step 3: Cross multiply
    1,517x = 3,226 × 3,226
  4. Step 4: Simplify right side
    1,517x = 10,407,076
  5. Step 5: Solve for x
    x = 10,407,076/1,517
  6. Step 6: Final answer
    x = 6,860.30

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.