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Finding the Fourth Proportional to 32.39, 48.57 and 16.96

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Solution

The fourth proportional to 32.39, 48.57 and 16.96 is: 25.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.39 : 48.57 = 16.96 : x
  2. Step 2: Convert to fraction form
    32.39/48.57 = 16.96/x
  3. Step 3: Cross multiply
    32.39x = 48.57 × 16.96
  4. Step 4: Simplify right side
    32.39x = 823.50
  5. Step 5: Solve for x
    x = 823.50/32.39
  6. Step 6: Final answer
    x = 25.42

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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.