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Finding the Third Proportional to 672.75 and 1,752.75

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Solution

The third proportional to 672.75 and 1,752.75 is: 4,566.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    672.75 : 1,752.75 = 1,752.75 : x
  2. Step 2: Convert to fraction form
    672.75/1,752.75 = 1,752.75/x
  3. Step 3: Cross multiply
    672.75x = 1,752.75 × 1,752.75
  4. Step 4: Simplify right side
    672.75x = 3,072,132.56
  5. Step 5: Solve for x
    x = 3,072,132.56/672.75
  6. Step 6: Final answer
    x = 4,566.53

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Why These Related Problems?

These problems maintain the same ratio (2.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.