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Finding the Fourth Proportional to 29.46, 44.16 and 25.86

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Solution

The fourth proportional to 29.46, 44.16 and 25.86 is: 38.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.46 : 44.16 = 25.86 : x
  2. Step 2: Convert to fraction form
    29.46/44.16 = 25.86/x
  3. Step 3: Cross multiply
    29.46x = 44.16 × 25.86
  4. Step 4: Simplify right side
    29.46x = 1,141.98
  5. Step 5: Solve for x
    x = 1,141.98/29.46
  6. Step 6: Final answer
    x = 38.76

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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.