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Finding the Third Proportional to 998.94 and 1,512.38

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Solution

The third proportional to 998.94 and 1,512.38 is: 2,289.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    998.94 : 1,512.38 = 1,512.38 : x
  2. Step 2: Convert to fraction form
    998.94/1,512.38 = 1,512.38/x
  3. Step 3: Cross multiply
    998.94x = 1,512.38 × 1,512.38
  4. Step 4: Simplify right side
    998.94x = 2,287,278.14
  5. Step 5: Solve for x
    x = 2,287,278.14/998.94
  6. Step 6: Final answer
    x = 2,289.71

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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.