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Finding the Fourth Proportional to 35.44, 48.96 and 33.28

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Solution

The fourth proportional to 35.44, 48.96 and 33.28 is: 45.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.44 : 48.96 = 33.28 : x
  2. Step 2: Convert to fraction form
    35.44/48.96 = 33.28/x
  3. Step 3: Cross multiply
    35.44x = 48.96 × 33.28
  4. Step 4: Simplify right side
    35.44x = 1,629.39
  5. Step 5: Solve for x
    x = 1,629.39/35.44
  6. Step 6: Final answer
    x = 45.98

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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.