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Finding the Fourth Proportional to 32.38, 48.56 and 11

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Solution

The fourth proportional to 32.38, 48.56 and 11 is: 16.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.38 : 48.56 = 11 : x
  2. Step 2: Convert to fraction form
    32.38/48.56 = 11/x
  3. Step 3: Cross multiply
    32.38x = 48.56 × 11
  4. Step 4: Simplify right side
    32.38x = 534.16
  5. Step 5: Solve for x
    x = 534.16/32.38
  6. Step 6: Final answer
    x = 16.50

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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.