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Finding the Fourth Proportional to 32.29, 48.29 and 31.83

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Solution

The fourth proportional to 32.29, 48.29 and 31.83 is: 47.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.29 : 48.29 = 31.83 : x
  2. Step 2: Convert to fraction form
    32.29/48.29 = 31.83/x
  3. Step 3: Cross multiply
    32.29x = 48.29 × 31.83
  4. Step 4: Simplify right side
    32.29x = 1,537.09
  5. Step 5: Solve for x
    x = 1,537.09/32.29
  6. Step 6: Final answer
    x = 47.61

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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.