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Finding the Fourth Proportional to 16.88, 25.44 and 16.48

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Solution

The fourth proportional to 16.88, 25.44 and 16.48 is: 24.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.88 : 25.44 = 16.48 : x
  2. Step 2: Convert to fraction form
    16.88/25.44 = 16.48/x
  3. Step 3: Cross multiply
    16.88x = 25.44 × 16.48
  4. Step 4: Simplify right side
    16.88x = 419.25
  5. Step 5: Solve for x
    x = 419.25/16.88
  6. Step 6: Final answer
    x = 24.84

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.