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Finding the Fourth Proportional to 32.06, 44.16 and 31.65

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Solution

The fourth proportional to 32.06, 44.16 and 31.65 is: 43.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.06 : 44.16 = 31.65 : x
  2. Step 2: Convert to fraction form
    32.06/44.16 = 31.65/x
  3. Step 3: Cross multiply
    32.06x = 44.16 × 31.65
  4. Step 4: Simplify right side
    32.06x = 1,397.94
  5. Step 5: Solve for x
    x = 1,397.94/32.06
  6. Step 6: Final answer
    x = 43.61

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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.