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Finding the Fourth Proportional to 47.44, 71.14 and 33

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Solution

The fourth proportional to 47.44, 71.14 and 33 is: 49.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    47.44 : 71.14 = 33 : x
  2. Step 2: Convert to fraction form
    47.44/71.14 = 33/x
  3. Step 3: Cross multiply
    47.44x = 71.14 × 33
  4. Step 4: Simplify right side
    47.44x = 2,347.62
  5. Step 5: Solve for x
    x = 2,347.62/47.44
  6. Step 6: Final answer
    x = 49.49

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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.