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Finding the Fourth Proportional to 75.49, 113.22 and 24.14

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Solution

The fourth proportional to 75.49, 113.22 and 24.14 is: 36.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75.49 : 113.22 = 24.14 : x
  2. Step 2: Convert to fraction form
    75.49/113.22 = 24.14/x
  3. Step 3: Cross multiply
    75.49x = 113.22 × 24.14
  4. Step 4: Simplify right side
    75.49x = 2,733.16
  5. Step 5: Solve for x
    x = 2,733.16/75.49
  6. Step 6: Final answer
    x = 36.21

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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.