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Finding the Third Proportional to 175.25 and 476.75

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Solution

The third proportional to 175.25 and 476.75 is: 1,296.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.25 : 476.75 = 476.75 : x
  2. Step 2: Convert to fraction form
    175.25/476.75 = 476.75/x
  3. Step 3: Cross multiply
    175.25x = 476.75 × 476.75
  4. Step 4: Simplify right side
    175.25x = 227,290.56
  5. Step 5: Solve for x
    x = 227,290.56/175.25
  6. Step 6: Final answer
    x = 1,296.95

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Why These Related Problems?

These problems maintain the same ratio (2.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.