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Finding the Fourth Proportional to 57, 85.51 and 44.24

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Solution

The fourth proportional to 57, 85.51 and 44.24 is: 66.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57 : 85.51 = 44.24 : x
  2. Step 2: Convert to fraction form
    57/85.51 = 44.24/x
  3. Step 3: Cross multiply
    57x = 85.51 × 44.24
  4. Step 4: Simplify right side
    57x = 3,782.96
  5. Step 5: Solve for x
    x = 3,782.96/57
  6. Step 6: Final answer
    x = 66.37

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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.