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Finding the Fourth Proportional to 32.92, 49.61 and 28.96

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Solution

The fourth proportional to 32.92, 49.61 and 28.96 is: 43.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.92 : 49.61 = 28.96 : x
  2. Step 2: Convert to fraction form
    32.92/49.61 = 28.96/x
  3. Step 3: Cross multiply
    32.92x = 49.61 × 28.96
  4. Step 4: Simplify right side
    32.92x = 1,436.71
  5. Step 5: Solve for x
    x = 1,436.71/32.92
  6. Step 6: Final answer
    x = 43.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.