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Finding the Fourth Proportional to 16.45, 24.68 and 4.43

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Solution

The fourth proportional to 16.45, 24.68 and 4.43 is: 6.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.45 : 24.68 = 4.43 : x
  2. Step 2: Convert to fraction form
    16.45/24.68 = 4.43/x
  3. Step 3: Cross multiply
    16.45x = 24.68 × 4.43
  4. Step 4: Simplify right side
    16.45x = 109.32
  5. Step 5: Solve for x
    x = 109.32/16.45
  6. Step 6: Final answer
    x = 6.64

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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.