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Finding the Fourth Proportional to 31.94, 44.11 and 25.50

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Solution

The fourth proportional to 31.94, 44.11 and 25.50 is: 35.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31.94 : 44.11 = 25.50 : x
  2. Step 2: Convert to fraction form
    31.94/44.11 = 25.50/x
  3. Step 3: Cross multiply
    31.94x = 44.11 × 25.50
  4. Step 4: Simplify right side
    31.94x = 1,124.81
  5. Step 5: Solve for x
    x = 1,124.81/31.94
  6. Step 6: Final answer
    x = 35.22

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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.