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Finding the Third Proportional to 997.13 and 2,168.81

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Solution

The third proportional to 997.13 and 2,168.81 is: 4,717.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    997.13 : 2,168.81 = 2,168.81 : x
  2. Step 2: Convert to fraction form
    997.13/2,168.81 = 2,168.81/x
  3. Step 3: Cross multiply
    997.13x = 2,168.81 × 2,168.81
  4. Step 4: Simplify right side
    997.13x = 4,703,747.66
  5. Step 5: Solve for x
    x = 4,703,747.66/997.13
  6. Step 6: Final answer
    x = 4,717.31

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.