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Finding the Fourth Proportional to 39,836.54, 59,754.80 and 12,134.54

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Solution

The fourth proportional to 39,836.54, 59,754.80 and 12,134.54 is: 18,201.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,836.54 : 59,754.80 = 12,134.54 : x
  2. Step 2: Convert to fraction form
    39,836.54/59,754.80 = 12,134.54/x
  3. Step 3: Cross multiply
    39,836.54x = 59,754.80 × 12,134.54
  4. Step 4: Simplify right side
    39,836.54x = 725,097,190.52
  5. Step 5: Solve for x
    x = 725,097,190.52/39,836.54
  6. Step 6: Final answer
    x = 18,201.81

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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.