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Finding the Third Proportional to 1,171 and 2,471

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Solution

The third proportional to 1,171 and 2,471 is: 5,214.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171 : 2,471 = 2,471 : x
  2. Step 2: Convert to fraction form
    1,171/2,471 = 2,471/x
  3. Step 3: Cross multiply
    1,171x = 2,471 × 2,471
  4. Step 4: Simplify right side
    1,171x = 6,105,841
  5. Step 5: Solve for x
    x = 6,105,841/1,171
  6. Step 6: Final answer
    x = 5,214.21

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.