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Finding the Third Proportional to 1,171 and 2,498

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Solution

The third proportional to 1,171 and 2,498 is: 5,328.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171 : 2,498 = 2,498 : x
  2. Step 2: Convert to fraction form
    1,171/2,498 = 2,498/x
  3. Step 3: Cross multiply
    1,171x = 2,498 × 2,498
  4. Step 4: Simplify right side
    1,171x = 6,240,004
  5. Step 5: Solve for x
    x = 6,240,004/1,171
  6. Step 6: Final answer
    x = 5,328.78

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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.