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Finding the Third Proportional to 89.44 and 120.94

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Solution

The third proportional to 89.44 and 120.94 is: 163.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    89.44 : 120.94 = 120.94 : x
  2. Step 2: Convert to fraction form
    89.44/120.94 = 120.94/x
  3. Step 3: Cross multiply
    89.44x = 120.94 × 120.94
  4. Step 4: Simplify right side
    89.44x = 14,625.88
  5. Step 5: Solve for x
    x = 14,625.88/89.44
  6. Step 6: Final answer
    x = 163.53

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.