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Finding the Third Proportional to 471 and 672.75

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Solution

The third proportional to 471 and 672.75 is: 960.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    471 : 672.75 = 672.75 : x
  2. Step 2: Convert to fraction form
    471/672.75 = 672.75/x
  3. Step 3: Cross multiply
    471x = 672.75 × 672.75
  4. Step 4: Simplify right side
    471x = 452,592.56
  5. Step 5: Solve for x
    x = 452,592.56/471
  6. Step 6: Final answer
    x = 960.92

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.