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Finding the Fourth Proportional to 31.60, 47.44 and 24

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Solution

The fourth proportional to 31.60, 47.44 and 24 is: 36.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31.60 : 47.44 = 24 : x
  2. Step 2: Convert to fraction form
    31.60/47.44 = 24/x
  3. Step 3: Cross multiply
    31.60x = 47.44 × 24
  4. Step 4: Simplify right side
    31.60x = 1,138.56
  5. Step 5: Solve for x
    x = 1,138.56/31.60
  6. Step 6: Final answer
    x = 36.03

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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.