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Finding the Fourth Proportional to 33.84, 50.40 and 32

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Solution

The fourth proportional to 33.84, 50.40 and 32 is: 47.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.84 : 50.40 = 32 : x
  2. Step 2: Convert to fraction form
    33.84/50.40 = 32/x
  3. Step 3: Cross multiply
    33.84x = 50.40 × 32
  4. Step 4: Simplify right side
    33.84x = 1,612.80
  5. Step 5: Solve for x
    x = 1,612.80/33.84
  6. Step 6: Final answer
    x = 47.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.