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Finding the Fourth Proportional to 22, 32.98 and 9.96

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Solution

The fourth proportional to 22, 32.98 and 9.96 is: 14.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22 : 32.98 = 9.96 : x
  2. Step 2: Convert to fraction form
    22/32.98 = 9.96/x
  3. Step 3: Cross multiply
    22x = 32.98 × 9.96
  4. Step 4: Simplify right side
    22x = 328.48
  5. Step 5: Solve for x
    x = 328.48/22
  6. Step 6: Final answer
    x = 14.93

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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.