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Finding the Fourth Proportional to 69,406.28, 104,128.86 and 27,882.44

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Solution

The fourth proportional to 69,406.28, 104,128.86 and 27,882.44 is: 41,831.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,406.28 : 104,128.86 = 27,882.44 : x
  2. Step 2: Convert to fraction form
    69,406.28/104,128.86 = 27,882.44/x
  3. Step 3: Cross multiply
    69,406.28x = 104,128.86 × 27,882.44
  4. Step 4: Simplify right side
    69,406.28x = 2,903,366,691.22
  5. Step 5: Solve for x
    x = 2,903,366,691.22/69,406.28
  6. Step 6: Final answer
    x = 41,831.47

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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.