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Finding the Fourth Proportional to 49.71, 74.51 and 22.62

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Solution

The fourth proportional to 49.71, 74.51 and 22.62 is: 33.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.71 : 74.51 = 22.62 : x
  2. Step 2: Convert to fraction form
    49.71/74.51 = 22.62/x
  3. Step 3: Cross multiply
    49.71x = 74.51 × 22.62
  4. Step 4: Simplify right side
    49.71x = 1,685.30
  5. Step 5: Solve for x
    x = 1,685.30/49.71
  6. Step 6: Final answer
    x = 33.90

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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.