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Finding the Fourth Proportional to 42.44, 58.52 and 33.68

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Solution

The fourth proportional to 42.44, 58.52 and 33.68 is: 46.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42.44 : 58.52 = 33.68 : x
  2. Step 2: Convert to fraction form
    42.44/58.52 = 33.68/x
  3. Step 3: Cross multiply
    42.44x = 58.52 × 33.68
  4. Step 4: Simplify right side
    42.44x = 1,970.49
  5. Step 5: Solve for x
    x = 1,970.49/42.44
  6. Step 6: Final answer
    x = 46.44

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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.