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Finding the Third Proportional to 2,918 and 5,692

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Solution

The third proportional to 2,918 and 5,692 is: 11,103.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918 : 5,692 = 5,692 : x
  2. Step 2: Convert to fraction form
    2,918/5,692 = 5,692/x
  3. Step 3: Cross multiply
    2,918x = 5,692 × 5,692
  4. Step 4: Simplify right side
    2,918x = 32,398,864
  5. Step 5: Solve for x
    x = 32,398,864/2,918
  6. Step 6: Final answer
    x = 11,103.11

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.