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Finding the Fourth Proportional to 55.24, 76.24 and 41.48

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Solution

The fourth proportional to 55.24, 76.24 and 41.48 is: 57.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55.24 : 76.24 = 41.48 : x
  2. Step 2: Convert to fraction form
    55.24/76.24 = 41.48/x
  3. Step 3: Cross multiply
    55.24x = 76.24 × 41.48
  4. Step 4: Simplify right side
    55.24x = 3,162.44
  5. Step 5: Solve for x
    x = 3,162.44/55.24
  6. Step 6: Final answer
    x = 57.25

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Why These Related Problems?

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