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Finding the Fourth Proportional to 16.68, 24.89 and 14.97

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Solution

The fourth proportional to 16.68, 24.89 and 14.97 is: 22.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.68 : 24.89 = 14.97 : x
  2. Step 2: Convert to fraction form
    16.68/24.89 = 14.97/x
  3. Step 3: Cross multiply
    16.68x = 24.89 × 14.97
  4. Step 4: Simplify right side
    16.68x = 372.57
  5. Step 5: Solve for x
    x = 372.57/16.68
  6. Step 6: Final answer
    x = 22.34

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Find fourth proportional to 8.34, 12.44 and 7.49
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.