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Finding the Fourth Proportional to 42.24, 58.14 and 35.26

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Solution

The fourth proportional to 42.24, 58.14 and 35.26 is: 48.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42.24 : 58.14 = 35.26 : x
  2. Step 2: Convert to fraction form
    42.24/58.14 = 35.26/x
  3. Step 3: Cross multiply
    42.24x = 58.14 × 35.26
  4. Step 4: Simplify right side
    42.24x = 2,049.73
  5. Step 5: Solve for x
    x = 2,049.73/42.24
  6. Step 6: Final answer
    x = 48.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.