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Finding the Fourth Proportional to 16, 23.94 and 10.64

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Solution

The fourth proportional to 16, 23.94 and 10.64 is: 15.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16 : 23.94 = 10.64 : x
  2. Step 2: Convert to fraction form
    16/23.94 = 10.64/x
  3. Step 3: Cross multiply
    16x = 23.94 × 10.64
  4. Step 4: Simplify right side
    16x = 254.72
  5. Step 5: Solve for x
    x = 254.72/16
  6. Step 6: Final answer
    x = 15.92

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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.