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Finding the Third Proportional to 1,167 and 2,511

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Solution

The third proportional to 1,167 and 2,511 is: 5,402.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167 : 2,511 = 2,511 : x
  2. Step 2: Convert to fraction form
    1,167/2,511 = 2,511/x
  3. Step 3: Cross multiply
    1,167x = 2,511 × 2,511
  4. Step 4: Simplify right side
    1,167x = 6,305,121
  5. Step 5: Solve for x
    x = 6,305,121/1,167
  6. Step 6: Final answer
    x = 5,402.85

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.