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Finding the Fourth Proportional to 16.62, 24.93 and 6.99

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Solution

The fourth proportional to 16.62, 24.93 and 6.99 is: 10.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.62 : 24.93 = 6.99 : x
  2. Step 2: Convert to fraction form
    16.62/24.93 = 6.99/x
  3. Step 3: Cross multiply
    16.62x = 24.93 × 6.99
  4. Step 4: Simplify right side
    16.62x = 174.26
  5. Step 5: Solve for x
    x = 174.26/16.62
  6. Step 6: Final answer
    x = 10.49

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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.