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Finding the Third Proportional to 184.75 and 391.75

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Solution

The third proportional to 184.75 and 391.75 is: 830.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.75 : 391.75 = 391.75 : x
  2. Step 2: Convert to fraction form
    184.75/391.75 = 391.75/x
  3. Step 3: Cross multiply
    184.75x = 391.75 × 391.75
  4. Step 4: Simplify right side
    184.75x = 153,468.06
  5. Step 5: Solve for x
    x = 153,468.06/184.75
  6. Step 6: Final answer
    x = 830.68

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.