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Finding the Fourth Proportional to 32.55, 48.82 and 11.17

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Solution

The fourth proportional to 32.55, 48.82 and 11.17 is: 16.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.55 : 48.82 = 11.17 : x
  2. Step 2: Convert to fraction form
    32.55/48.82 = 11.17/x
  3. Step 3: Cross multiply
    32.55x = 48.82 × 11.17
  4. Step 4: Simplify right side
    32.55x = 545.44
  5. Step 5: Solve for x
    x = 545.44/32.55
  6. Step 6: Final answer
    x = 16.76

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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.