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Finding the Third Proportional to 772.88 and 1,326.94

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Solution

The third proportional to 772.88 and 1,326.94 is: 2,278.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    772.88 : 1,326.94 = 1,326.94 : x
  2. Step 2: Convert to fraction form
    772.88/1,326.94 = 1,326.94/x
  3. Step 3: Cross multiply
    772.88x = 1,326.94 × 1,326.94
  4. Step 4: Simplify right side
    772.88x = 1,760,763.13
  5. Step 5: Solve for x
    x = 1,760,763.13/772.88
  6. Step 6: Final answer
    x = 2,278.20

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Why These Related Problems?

These problems maintain the same ratio (1.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.