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Finding the Fourth Proportional to 16.56, 24.80 and 14.67

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Solution

The fourth proportional to 16.56, 24.80 and 14.67 is: 21.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.56 : 24.80 = 14.67 : x
  2. Step 2: Convert to fraction form
    16.56/24.80 = 14.67/x
  3. Step 3: Cross multiply
    16.56x = 24.80 × 14.67
  4. Step 4: Simplify right side
    16.56x = 363.74
  5. Step 5: Solve for x
    x = 363.74/16.56
  6. Step 6: Final answer
    x = 21.97

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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.