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Finding the Fourth Proportional to 16.17, 24.24 and 9.77

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Solution

The fourth proportional to 16.17, 24.24 and 9.77 is: 14.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.17 : 24.24 = 9.77 : x
  2. Step 2: Convert to fraction form
    16.17/24.24 = 9.77/x
  3. Step 3: Cross multiply
    16.17x = 24.24 × 9.77
  4. Step 4: Simplify right side
    16.17x = 236.70
  5. Step 5: Solve for x
    x = 236.70/16.17
  6. Step 6: Final answer
    x = 14.64

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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.