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Finding the Third Proportional to 174.75 and 472.13

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Solution

The third proportional to 174.75 and 472.13 is: 1,275.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.75 : 472.13 = 472.13 : x
  2. Step 2: Convert to fraction form
    174.75/472.13 = 472.13/x
  3. Step 3: Cross multiply
    174.75x = 472.13 × 472.13
  4. Step 4: Simplify right side
    174.75x = 222,902.02
  5. Step 5: Solve for x
    x = 222,902.02/174.75
  6. Step 6: Final answer
    x = 1,275.55

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Why These Related Problems?

These problems maintain the same ratio (2.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.