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Finding the Fourth Proportional to 23.94, 35.90 and 17.22

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Solution

The fourth proportional to 23.94, 35.90 and 17.22 is: 25.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.94 : 35.90 = 17.22 : x
  2. Step 2: Convert to fraction form
    23.94/35.90 = 17.22/x
  3. Step 3: Cross multiply
    23.94x = 35.90 × 17.22
  4. Step 4: Simplify right side
    23.94x = 618.20
  5. Step 5: Solve for x
    x = 618.20/23.94
  6. Step 6: Final answer
    x = 25.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.