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Finding the Fourth Proportional to 49.72, 68.63 and 33.34

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Solution

The fourth proportional to 49.72, 68.63 and 33.34 is: 46.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.72 : 68.63 = 33.34 : x
  2. Step 2: Convert to fraction form
    49.72/68.63 = 33.34/x
  3. Step 3: Cross multiply
    49.72x = 68.63 × 33.34
  4. Step 4: Simplify right side
    49.72x = 2,288.12
  5. Step 5: Solve for x
    x = 2,288.12/49.72
  6. Step 6: Final answer
    x = 46.02

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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.