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Finding the Third Proportional to 349.88 and 759.66

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Solution

The third proportional to 349.88 and 759.66 is: 1,649.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.88 : 759.66 = 759.66 : x
  2. Step 2: Convert to fraction form
    349.88/759.66 = 759.66/x
  3. Step 3: Cross multiply
    349.88x = 759.66 × 759.66
  4. Step 4: Simplify right side
    349.88x = 577,077.62
  5. Step 5: Solve for x
    x = 577,077.62/349.88
  6. Step 6: Final answer
    x = 1,649.38

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.