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Finding the Third Proportional to 792.91 and 1,229.55

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Solution

The third proportional to 792.91 and 1,229.55 is: 1,906.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.91 : 1,229.55 = 1,229.55 : x
  2. Step 2: Convert to fraction form
    792.91/1,229.55 = 1,229.55/x
  3. Step 3: Cross multiply
    792.91x = 1,229.55 × 1,229.55
  4. Step 4: Simplify right side
    792.91x = 1,511,804.73
  5. Step 5: Solve for x
    x = 1,511,804.73/792.91
  6. Step 6: Final answer
    x = 1,906.64

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.