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Finding the Third Proportional to 84.50 and 183.25

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Solution

The third proportional to 84.50 and 183.25 is: 397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84.50 : 183.25 = 183.25 : x
  2. Step 2: Convert to fraction form
    84.50/183.25 = 183.25/x
  3. Step 3: Cross multiply
    84.50x = 183.25 × 183.25
  4. Step 4: Simplify right side
    84.50x = 33,580.56
  5. Step 5: Solve for x
    x = 33,580.56/84.50
  6. Step 6: Final answer
    x = 397.40

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.