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Finding the Fourth Proportional to 35.91, 49.42 and 33.00

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Solution

The fourth proportional to 35.91, 49.42 and 33.00 is: 45.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.91 : 49.42 = 33.00 : x
  2. Step 2: Convert to fraction form
    35.91/49.42 = 33.00/x
  3. Step 3: Cross multiply
    35.91x = 49.42 × 33.00
  4. Step 4: Simplify right side
    35.91x = 1,630.72
  5. Step 5: Solve for x
    x = 1,630.72/35.91
  6. Step 6: Final answer
    x = 45.41

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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.