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Finding the Third Proportional to 44.75 and 84.50

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Solution

The third proportional to 44.75 and 84.50 is: 159.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.75 : 84.50 = 84.50 : x
  2. Step 2: Convert to fraction form
    44.75/84.50 = 84.50/x
  3. Step 3: Cross multiply
    44.75x = 84.50 × 84.50
  4. Step 4: Simplify right side
    44.75x = 7,140.25
  5. Step 5: Solve for x
    x = 7,140.25/44.75
  6. Step 6: Final answer
    x = 159.56

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Why These Related Problems?

These problems maintain the same ratio (1.89) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.