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Finding the Fourth Proportional to 14.68, 22 and 8.67

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Solution

The fourth proportional to 14.68, 22 and 8.67 is: 12.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.68 : 22 = 8.67 : x
  2. Step 2: Convert to fraction form
    14.68/22 = 8.67/x
  3. Step 3: Cross multiply
    14.68x = 22 × 8.67
  4. Step 4: Simplify right side
    14.68x = 190.74
  5. Step 5: Solve for x
    x = 190.74/14.68
  6. Step 6: Final answer
    x = 12.99

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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.