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Finding the Third Proportional to 185.25 and 344.25

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Solution

The third proportional to 185.25 and 344.25 is: 639.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    185.25 : 344.25 = 344.25 : x
  2. Step 2: Convert to fraction form
    185.25/344.25 = 344.25/x
  3. Step 3: Cross multiply
    185.25x = 344.25 × 344.25
  4. Step 4: Simplify right side
    185.25x = 118,508.06
  5. Step 5: Solve for x
    x = 118,508.06/185.25
  6. Step 6: Final answer
    x = 639.72

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.