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Finding the Fourth Proportional to 32.91, 49.37 and 12.62

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Solution

The fourth proportional to 32.91, 49.37 and 12.62 is: 18.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.91 : 49.37 = 12.62 : x
  2. Step 2: Convert to fraction form
    32.91/49.37 = 12.62/x
  3. Step 3: Cross multiply
    32.91x = 49.37 × 12.62
  4. Step 4: Simplify right side
    32.91x = 623.20
  5. Step 5: Solve for x
    x = 623.20/32.91
  6. Step 6: Final answer
    x = 18.94

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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.