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Finding the Fourth Proportional to 31.67, 47.43 and 24.06

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Solution

The fourth proportional to 31.67, 47.43 and 24.06 is: 36.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31.67 : 47.43 = 24.06 : x
  2. Step 2: Convert to fraction form
    31.67/47.43 = 24.06/x
  3. Step 3: Cross multiply
    31.67x = 47.43 × 24.06
  4. Step 4: Simplify right side
    31.67x = 1,141.17
  5. Step 5: Solve for x
    x = 1,141.17/31.67
  6. Step 6: Final answer
    x = 36.04

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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.