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Finding the Third Proportional to 174 and 442

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Solution

The third proportional to 174 and 442 is: 1,122.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    174 : 442 = 442 : x
  2. Step 2: Convert to fraction form
    174/442 = 442/x
  3. Step 3: Cross multiply
    174x = 442 × 442
  4. Step 4: Simplify right side
    174x = 195,364
  5. Step 5: Solve for x
    x = 195,364/174
  6. Step 6: Final answer
    x = 1,122.78

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Why These Related Problems?

These problems maintain the same ratio (2.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.