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Finding the Fourth Proportional to 32.49, 48.67 and 19.65

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Solution

The fourth proportional to 32.49, 48.67 and 19.65 is: 29.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.49 : 48.67 = 19.65 : x
  2. Step 2: Convert to fraction form
    32.49/48.67 = 19.65/x
  3. Step 3: Cross multiply
    32.49x = 48.67 × 19.65
  4. Step 4: Simplify right side
    32.49x = 956.54
  5. Step 5: Solve for x
    x = 956.54/32.49
  6. Step 6: Final answer
    x = 29.44

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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.