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Finding the Fourth Proportional to 16.64, 24.99 and 14.68

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Solution

The fourth proportional to 16.64, 24.99 and 14.68 is: 22.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.64 : 24.99 = 14.68 : x
  2. Step 2: Convert to fraction form
    16.64/24.99 = 14.68/x
  3. Step 3: Cross multiply
    16.64x = 24.99 × 14.68
  4. Step 4: Simplify right side
    16.64x = 366.65
  5. Step 5: Solve for x
    x = 366.65/16.64
  6. Step 6: Final answer
    x = 22.04

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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.