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Finding the Fourth Proportional to 16.72, 24.89 and 16.48

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Solution

The fourth proportional to 16.72, 24.89 and 16.48 is: 24.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.72 : 24.89 = 16.48 : x
  2. Step 2: Convert to fraction form
    16.72/24.89 = 16.48/x
  3. Step 3: Cross multiply
    16.72x = 24.89 × 16.48
  4. Step 4: Simplify right side
    16.72x = 410.19
  5. Step 5: Solve for x
    x = 410.19/16.72
  6. Step 6: Final answer
    x = 24.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.