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Finding the Fourth Proportional to 23.38, 35.08 and 11.98

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Solution

The fourth proportional to 23.38, 35.08 and 11.98 is: 17.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.38 : 35.08 = 11.98 : x
  2. Step 2: Convert to fraction form
    23.38/35.08 = 11.98/x
  3. Step 3: Cross multiply
    23.38x = 35.08 × 11.98
  4. Step 4: Simplify right side
    23.38x = 420.26
  5. Step 5: Solve for x
    x = 420.26/23.38
  6. Step 6: Final answer
    x = 17.98

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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.