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Finding the Fourth Proportional to 36,760.71, 55,052.25 and 20,917.74

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Solution

The fourth proportional to 36,760.71, 55,052.25 and 20,917.74 is: 31,326.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,760.71 : 55,052.25 = 20,917.74 : x
  2. Step 2: Convert to fraction form
    36,760.71/55,052.25 = 20,917.74/x
  3. Step 3: Cross multiply
    36,760.71x = 55,052.25 × 20,917.74
  4. Step 4: Simplify right side
    36,760.71x = 1,151,568,573.47
  5. Step 5: Solve for x
    x = 1,151,568,573.47/36,760.71
  6. Step 6: Final answer
    x = 31,326.07

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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.