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Finding the Fourth Proportional to 29.94, 44.99 and 21.84

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Solution

The fourth proportional to 29.94, 44.99 and 21.84 is: 32.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.94 : 44.99 = 21.84 : x
  2. Step 2: Convert to fraction form
    29.94/44.99 = 21.84/x
  3. Step 3: Cross multiply
    29.94x = 44.99 × 21.84
  4. Step 4: Simplify right side
    29.94x = 982.39
  5. Step 5: Solve for x
    x = 982.39/29.94
  6. Step 6: Final answer
    x = 32.82

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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.