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Finding the Fourth Proportional to 69,921.48, 104,896.86 and 22,540.12

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Solution

The fourth proportional to 69,921.48, 104,896.86 and 22,540.12 is: 33,814.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,921.48 : 104,896.86 = 22,540.12 : x
  2. Step 2: Convert to fraction form
    69,921.48/104,896.86 = 22,540.12/x
  3. Step 3: Cross multiply
    69,921.48x = 104,896.86 × 22,540.12
  4. Step 4: Simplify right side
    69,921.48x = 2,364,387,812.02
  5. Step 5: Solve for x
    x = 2,364,387,812.02/69,921.48
  6. Step 6: Final answer
    x = 33,814.90

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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.