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Finding the Fourth Proportional to 49.56, 74.31 and 22.52

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Solution

The fourth proportional to 49.56, 74.31 and 22.52 is: 33.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.56 : 74.31 = 22.52 : x
  2. Step 2: Convert to fraction form
    49.56/74.31 = 22.52/x
  3. Step 3: Cross multiply
    49.56x = 74.31 × 22.52
  4. Step 4: Simplify right side
    49.56x = 1,673.46
  5. Step 5: Solve for x
    x = 1,673.46/49.56
  6. Step 6: Final answer
    x = 33.77

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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.