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Finding the Fourth Proportional to 59,889, 82,679.22 and 36,021

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Solution

The fourth proportional to 59,889, 82,679.22 and 36,021 is: 49,728.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,889 : 82,679.22 = 36,021 : x
  2. Step 2: Convert to fraction form
    59,889/82,679.22 = 36,021/x
  3. Step 3: Cross multiply
    59,889x = 82,679.22 × 36,021
  4. Step 4: Simplify right side
    59,889x = 2,978,188,183.62
  5. Step 5: Solve for x
    x = 2,978,188,183.62/59,889
  6. Step 6: Final answer
    x = 49,728.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.