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Finding the Fourth Proportional to 24.15, 36.21 and 16.02

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Solution

The fourth proportional to 24.15, 36.21 and 16.02 is: 24.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.15 : 36.21 = 16.02 : x
  2. Step 2: Convert to fraction form
    24.15/36.21 = 16.02/x
  3. Step 3: Cross multiply
    24.15x = 36.21 × 16.02
  4. Step 4: Simplify right side
    24.15x = 580.08
  5. Step 5: Solve for x
    x = 580.08/24.15
  6. Step 6: Final answer
    x = 24.02

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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.