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Finding the Fourth Proportional to 33.50, 46.20 and 23.14

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Solution

The fourth proportional to 33.50, 46.20 and 23.14 is: 31.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.50 : 46.20 = 23.14 : x
  2. Step 2: Convert to fraction form
    33.50/46.20 = 23.14/x
  3. Step 3: Cross multiply
    33.50x = 46.20 × 23.14
  4. Step 4: Simplify right side
    33.50x = 1,069.04
  5. Step 5: Solve for x
    x = 1,069.04/33.50
  6. Step 6: Final answer
    x = 31.91

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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.