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Finding the Fourth Proportional to 36,079.91, 49,785.95 and 19,945.04

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Solution

The fourth proportional to 36,079.91, 49,785.95 and 19,945.04 is: 27,521.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,079.91 : 49,785.95 = 19,945.04 : x
  2. Step 2: Convert to fraction form
    36,079.91/49,785.95 = 19,945.04/x
  3. Step 3: Cross multiply
    36,079.91x = 49,785.95 × 19,945.04
  4. Step 4: Simplify right side
    36,079.91x = 992,982,565.12
  5. Step 5: Solve for x
    x = 992,982,565.12/36,079.91
  6. Step 6: Final answer
    x = 27,521.76

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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.