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Finding the Fourth Proportional to 48.24, 72.04 and 41.79

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Solution

The fourth proportional to 48.24, 72.04 and 41.79 is: 62.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    48.24 : 72.04 = 41.79 : x
  2. Step 2: Convert to fraction form
    48.24/72.04 = 41.79/x
  3. Step 3: Cross multiply
    48.24x = 72.04 × 41.79
  4. Step 4: Simplify right side
    48.24x = 3,010.55
  5. Step 5: Solve for x
    x = 3,010.55/48.24
  6. Step 6: Final answer
    x = 62.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.