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Finding the Fourth Proportional to 31, 46.37 and 23.26

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Solution

The fourth proportional to 31, 46.37 and 23.26 is: 34.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31 : 46.37 = 23.26 : x
  2. Step 2: Convert to fraction form
    31/46.37 = 23.26/x
  3. Step 3: Cross multiply
    31x = 46.37 × 23.26
  4. Step 4: Simplify right side
    31x = 1,078.57
  5. Step 5: Solve for x
    x = 1,078.57/31
  6. Step 6: Final answer
    x = 34.79

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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.