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Finding the Fourth Proportional to 32.97, 49.24 and 31.22

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Solution

The fourth proportional to 32.97, 49.24 and 31.22 is: 46.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.97 : 49.24 = 31.22 : x
  2. Step 2: Convert to fraction form
    32.97/49.24 = 31.22/x
  3. Step 3: Cross multiply
    32.97x = 49.24 × 31.22
  4. Step 4: Simplify right side
    32.97x = 1,536.87
  5. Step 5: Solve for x
    x = 1,536.87/32.97
  6. Step 6: Final answer
    x = 46.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.