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Finding the Fourth Proportional to 43.74, 60.30 and 36

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Solution

The fourth proportional to 43.74, 60.30 and 36 is: 49.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.74 : 60.30 = 36 : x
  2. Step 2: Convert to fraction form
    43.74/60.30 = 36/x
  3. Step 3: Cross multiply
    43.74x = 60.30 × 36
  4. Step 4: Simplify right side
    43.74x = 2,170.80
  5. Step 5: Solve for x
    x = 2,170.80/43.74
  6. Step 6: Final answer
    x = 49.63

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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.