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Finding the Fourth Proportional to 36.74, 50.71 and 22.92

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Solution

The fourth proportional to 36.74, 50.71 and 22.92 is: 31.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36.74 : 50.71 = 22.92 : x
  2. Step 2: Convert to fraction form
    36.74/50.71 = 22.92/x
  3. Step 3: Cross multiply
    36.74x = 50.71 × 22.92
  4. Step 4: Simplify right side
    36.74x = 1,162.13
  5. Step 5: Solve for x
    x = 1,162.13/36.74
  6. Step 6: Final answer
    x = 31.63

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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.