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Finding the Third Proportional to 184.75 and 391

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Solution

The third proportional to 184.75 and 391 is: 827.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.75 : 391 = 391 : x
  2. Step 2: Convert to fraction form
    184.75/391 = 391/x
  3. Step 3: Cross multiply
    184.75x = 391 × 391
  4. Step 4: Simplify right side
    184.75x = 152,881
  5. Step 5: Solve for x
    x = 152,881/184.75
  6. Step 6: Final answer
    x = 827.50

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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.