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Finding the Fourth Proportional to 69,305.92, 103,971.71 and 21,932.92

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Solution

The fourth proportional to 69,305.92, 103,971.71 and 21,932.92 is: 32,903.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,305.92 : 103,971.71 = 21,932.92 : x
  2. Step 2: Convert to fraction form
    69,305.92/103,971.71 = 21,932.92/x
  3. Step 3: Cross multiply
    69,305.92x = 103,971.71 × 21,932.92
  4. Step 4: Simplify right side
    69,305.92x = 2,280,403,197.69
  5. Step 5: Solve for x
    x = 2,280,403,197.69/69,305.92
  6. Step 6: Final answer
    x = 32,903.44

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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.