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Finding the Fourth Proportional to 59,889.75, 82,680.26 and 36,021.75

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Solution

The fourth proportional to 59,889.75, 82,680.26 and 36,021.75 is: 49,729.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,889.75 : 82,680.26 = 36,021.75 : x
  2. Step 2: Convert to fraction form
    59,889.75/82,680.26 = 36,021.75/x
  3. Step 3: Cross multiply
    59,889.75x = 82,680.26 × 36,021.75
  4. Step 4: Simplify right side
    59,889.75x = 2,978,287,475.55
  5. Step 5: Solve for x
    x = 2,978,287,475.55/59,889.75
  6. Step 6: Final answer
    x = 49,729.50

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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.