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Finding the Fourth Proportional to 59.92, 89.70 and 44.56

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Solution

The fourth proportional to 59.92, 89.70 and 44.56 is: 66.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.92 : 89.70 = 44.56 : x
  2. Step 2: Convert to fraction form
    59.92/89.70 = 44.56/x
  3. Step 3: Cross multiply
    59.92x = 89.70 × 44.56
  4. Step 4: Simplify right side
    59.92x = 3,997.03
  5. Step 5: Solve for x
    x = 3,997.03/59.92
  6. Step 6: Final answer
    x = 66.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.