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Finding the Fourth Proportional to 33.99, 51 and 15.96

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Solution

The fourth proportional to 33.99, 51 and 15.96 is: 23.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.99 : 51 = 15.96 : x
  2. Step 2: Convert to fraction form
    33.99/51 = 15.96/x
  3. Step 3: Cross multiply
    33.99x = 51 × 15.96
  4. Step 4: Simplify right side
    33.99x = 813.71
  5. Step 5: Solve for x
    x = 813.71/33.99
  6. Step 6: Final answer
    x = 23.94

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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.