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Finding the Fourth Proportional to 55.24, 76.22 and 33.38

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Solution

The fourth proportional to 55.24, 76.22 and 33.38 is: 46.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55.24 : 76.22 = 33.38 : x
  2. Step 2: Convert to fraction form
    55.24/76.22 = 33.38/x
  3. Step 3: Cross multiply
    55.24x = 76.22 × 33.38
  4. Step 4: Simplify right side
    55.24x = 2,544.22
  5. Step 5: Solve for x
    x = 2,544.22/55.24
  6. Step 6: Final answer
    x = 46.06

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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.