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Finding the Fourth Proportional to 32.63, 44.96 and 31.91

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Solution

The fourth proportional to 32.63, 44.96 and 31.91 is: 43.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.63 : 44.96 = 31.91 : x
  2. Step 2: Convert to fraction form
    32.63/44.96 = 31.91/x
  3. Step 3: Cross multiply
    32.63x = 44.96 × 31.91
  4. Step 4: Simplify right side
    32.63x = 1,434.29
  5. Step 5: Solve for x
    x = 1,434.29/32.63
  6. Step 6: Final answer
    x = 43.96

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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.