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Finding the Fourth Proportional to 14.93, 22.39 and 7.31

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Solution

The fourth proportional to 14.93, 22.39 and 7.31 is: 10.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.93 : 22.39 = 7.31 : x
  2. Step 2: Convert to fraction form
    14.93/22.39 = 7.31/x
  3. Step 3: Cross multiply
    14.93x = 22.39 × 7.31
  4. Step 4: Simplify right side
    14.93x = 163.62
  5. Step 5: Solve for x
    x = 163.62/14.93
  6. Step 6: Final answer
    x = 10.96

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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.