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Finding the Fourth Proportional to 35.35, 48.74 and 33.42

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Solution

The fourth proportional to 35.35, 48.74 and 33.42 is: 46.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.35 : 48.74 = 33.42 : x
  2. Step 2: Convert to fraction form
    35.35/48.74 = 33.42/x
  3. Step 3: Cross multiply
    35.35x = 48.74 × 33.42
  4. Step 4: Simplify right side
    35.35x = 1,628.91
  5. Step 5: Solve for x
    x = 1,628.91/35.35
  6. Step 6: Final answer
    x = 46.08

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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.