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Finding the Third Proportional to 622.75 and 1,326.75

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Solution

The third proportional to 622.75 and 1,326.75 is: 2,826.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.75 : 1,326.75 = 1,326.75 : x
  2. Step 2: Convert to fraction form
    622.75/1,326.75 = 1,326.75/x
  3. Step 3: Cross multiply
    622.75x = 1,326.75 × 1,326.75
  4. Step 4: Simplify right side
    622.75x = 1,760,265.56
  5. Step 5: Solve for x
    x = 1,760,265.56/622.75
  6. Step 6: Final answer
    x = 2,826.60

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.