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Finding the Fourth Proportional to 59,889.92, 89,843.08 and 20,436.44

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Solution

The fourth proportional to 59,889.92, 89,843.08 and 20,436.44 is: 30,657.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,889.92 : 89,843.08 = 20,436.44 : x
  2. Step 2: Convert to fraction form
    59,889.92/89,843.08 = 20,436.44/x
  3. Step 3: Cross multiply
    59,889.92x = 89,843.08 × 20,436.44
  4. Step 4: Simplify right side
    59,889.92x = 1,836,072,713.84
  5. Step 5: Solve for x
    x = 1,836,072,713.84/59,889.92
  6. Step 6: Final answer
    x = 30,657.46

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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.