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Finding the Fourth Proportional to 89.82, 123.97 and 60.69

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Solution

The fourth proportional to 89.82, 123.97 and 60.69 is: 83.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    89.82 : 123.97 = 60.69 : x
  2. Step 2: Convert to fraction form
    89.82/123.97 = 60.69/x
  3. Step 3: Cross multiply
    89.82x = 123.97 × 60.69
  4. Step 4: Simplify right side
    89.82x = 7,523.74
  5. Step 5: Solve for x
    x = 7,523.74/89.82
  6. Step 6: Final answer
    x = 83.76

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.