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Finding the Fourth Proportional to 49.36, 68.14 and 33

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Solution

The fourth proportional to 49.36, 68.14 and 33 is: 45.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.36 : 68.14 = 33 : x
  2. Step 2: Convert to fraction form
    49.36/68.14 = 33/x
  3. Step 3: Cross multiply
    49.36x = 68.14 × 33
  4. Step 4: Simplify right side
    49.36x = 2,248.62
  5. Step 5: Solve for x
    x = 2,248.62/49.36
  6. Step 6: Final answer
    x = 45.56

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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.