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Finding the Fourth Proportional to 48.29, 72.41 and 33.08

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Solution

The fourth proportional to 48.29, 72.41 and 33.08 is: 49.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48.29 : 72.41 = 33.08 : x
  2. Step 2: Convert to fraction form
    48.29/72.41 = 33.08/x
  3. Step 3: Cross multiply
    48.29x = 72.41 × 33.08
  4. Step 4: Simplify right side
    48.29x = 2,395.16
  5. Step 5: Solve for x
    x = 2,395.16/48.29
  6. Step 6: Final answer
    x = 49.60

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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.