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Finding the Fourth Proportional to 15.15, 22.67 and 9.44

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Solution

The fourth proportional to 15.15, 22.67 and 9.44 is: 14.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.15 : 22.67 = 9.44 : x
  2. Step 2: Convert to fraction form
    15.15/22.67 = 9.44/x
  3. Step 3: Cross multiply
    15.15x = 22.67 × 9.44
  4. Step 4: Simplify right side
    15.15x = 214.04
  5. Step 5: Solve for x
    x = 214.04/15.15
  6. Step 6: Final answer
    x = 14.13

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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.