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Finding the Fourth Proportional to 30.86, 46.24 and 24.11

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Solution

The fourth proportional to 30.86, 46.24 and 24.11 is: 36.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30.86 : 46.24 = 24.11 : x
  2. Step 2: Convert to fraction form
    30.86/46.24 = 24.11/x
  3. Step 3: Cross multiply
    30.86x = 46.24 × 24.11
  4. Step 4: Simplify right side
    30.86x = 1,114.99
  5. Step 5: Solve for x
    x = 1,114.99/30.86
  6. Step 6: Final answer
    x = 36.13

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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.