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Finding the Fourth Proportional to 69.16, 95.40 and 44.27

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Solution

The fourth proportional to 69.16, 95.40 and 44.27 is: 61.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    69.16 : 95.40 = 44.27 : x
  2. Step 2: Convert to fraction form
    69.16/95.40 = 44.27/x
  3. Step 3: Cross multiply
    69.16x = 95.40 × 44.27
  4. Step 4: Simplify right side
    69.16x = 4,222.88
  5. Step 5: Solve for x
    x = 4,222.88/69.16
  6. Step 6: Final answer
    x = 61.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.