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Finding the Fourth Proportional to 32.63, 48.95 and 11.25

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Solution

The fourth proportional to 32.63, 48.95 and 11.25 is: 16.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.63 : 48.95 = 11.25 : x
  2. Step 2: Convert to fraction form
    32.63/48.95 = 11.25/x
  3. Step 3: Cross multiply
    32.63x = 48.95 × 11.25
  4. Step 4: Simplify right side
    32.63x = 550.69
  5. Step 5: Solve for x
    x = 550.69/32.63
  6. Step 6: Final answer
    x = 16.88

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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.