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Finding the Fourth Proportional to 16.44, 24.64 and 9.70

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Solution

The fourth proportional to 16.44, 24.64 and 9.70 is: 14.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.44 : 24.64 = 9.70 : x
  2. Step 2: Convert to fraction form
    16.44/24.64 = 9.70/x
  3. Step 3: Cross multiply
    16.44x = 24.64 × 9.70
  4. Step 4: Simplify right side
    16.44x = 239.01
  5. Step 5: Solve for x
    x = 239.01/16.44
  6. Step 6: Final answer
    x = 14.54

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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.