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Finding the Fourth Proportional to 35.24, 48.78 and 33.48

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Solution

The fourth proportional to 35.24, 48.78 and 33.48 is: 46.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.24 : 48.78 = 33.48 : x
  2. Step 2: Convert to fraction form
    35.24/48.78 = 33.48/x
  3. Step 3: Cross multiply
    35.24x = 48.78 × 33.48
  4. Step 4: Simplify right side
    35.24x = 1,633.15
  5. Step 5: Solve for x
    x = 1,633.15/35.24
  6. Step 6: Final answer
    x = 46.35

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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.