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Finding the Fourth Proportional to 16.64, 24.96 and 9.50

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Solution

The fourth proportional to 16.64, 24.96 and 9.50 is: 14.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.64 : 24.96 = 9.50 : x
  2. Step 2: Convert to fraction form
    16.64/24.96 = 9.50/x
  3. Step 3: Cross multiply
    16.64x = 24.96 × 9.50
  4. Step 4: Simplify right side
    16.64x = 237.12
  5. Step 5: Solve for x
    x = 237.12/16.64
  6. Step 6: Final answer
    x = 14.25

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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.