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Finding the Third Proportional to 3,633.75 and 7,912.13

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Solution

The third proportional to 3,633.75 and 7,912.13 is: 17,227.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,633.75 : 7,912.13 = 7,912.13 : x
  2. Step 2: Convert to fraction form
    3,633.75/7,912.13 = 7,912.13/x
  3. Step 3: Cross multiply
    3,633.75x = 7,912.13 × 7,912.13
  4. Step 4: Simplify right side
    3,633.75x = 62,601,722.02
  5. Step 5: Solve for x
    x = 62,601,722.02/3,633.75
  6. Step 6: Final answer
    x = 17,227.86

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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.