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Finding the Third Proportional to 2,133.28 and 3,229.73

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Solution

The third proportional to 2,133.28 and 3,229.73 is: 4,889.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.28 : 3,229.73 = 3,229.73 : x
  2. Step 2: Convert to fraction form
    2,133.28/3,229.73 = 3,229.73/x
  3. Step 3: Cross multiply
    2,133.28x = 3,229.73 × 3,229.73
  4. Step 4: Simplify right side
    2,133.28x = 10,431,184.13
  5. Step 5: Solve for x
    x = 10,431,184.13/2,133.28
  6. Step 6: Final answer
    x = 4,889.74

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.