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Finding the Fourth Proportional to 14.95, 22.38 and 11.13

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Solution

The fourth proportional to 14.95, 22.38 and 11.13 is: 16.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.95 : 22.38 = 11.13 : x
  2. Step 2: Convert to fraction form
    14.95/22.38 = 11.13/x
  3. Step 3: Cross multiply
    14.95x = 22.38 × 11.13
  4. Step 4: Simplify right side
    14.95x = 249.09
  5. Step 5: Solve for x
    x = 249.09/14.95
  6. Step 6: Final answer
    x = 16.67

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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.