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Finding the Fourth Proportional to 16.65, 24.92 and 14.65

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Solution

The fourth proportional to 16.65, 24.92 and 14.65 is: 21.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.65 : 24.92 = 14.65 : x
  2. Step 2: Convert to fraction form
    16.65/24.92 = 14.65/x
  3. Step 3: Cross multiply
    16.65x = 24.92 × 14.65
  4. Step 4: Simplify right side
    16.65x = 365.08
  5. Step 5: Solve for x
    x = 365.08/16.65
  6. Step 6: Final answer
    x = 21.93

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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.