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Finding the Fourth Proportional to 35.67, 49.24 and 31.52

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Solution

The fourth proportional to 35.67, 49.24 and 31.52 is: 43.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.67 : 49.24 = 31.52 : x
  2. Step 2: Convert to fraction form
    35.67/49.24 = 31.52/x
  3. Step 3: Cross multiply
    35.67x = 49.24 × 31.52
  4. Step 4: Simplify right side
    35.67x = 1,552.21
  5. Step 5: Solve for x
    x = 1,552.21/35.67
  6. Step 6: Final answer
    x = 43.51

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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.