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Finding the Fourth Proportional to 22.02, 33 and 9.98

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Solution

The fourth proportional to 22.02, 33 and 9.98 is: 14.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.02 : 33 = 9.98 : x
  2. Step 2: Convert to fraction form
    22.02/33 = 9.98/x
  3. Step 3: Cross multiply
    22.02x = 33 × 9.98
  4. Step 4: Simplify right side
    22.02x = 329.34
  5. Step 5: Solve for x
    x = 329.34/22.02
  6. Step 6: Final answer
    x = 14.96

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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.