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Finding the Fourth Proportional to 71,694.08, 107,541.06 and 21,773.97

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Solution

The fourth proportional to 71,694.08, 107,541.06 and 21,773.97 is: 32,660.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,694.08 : 107,541.06 = 21,773.97 : x
  2. Step 2: Convert to fraction form
    71,694.08/107,541.06 = 21,773.97/x
  3. Step 3: Cross multiply
    71,694.08x = 107,541.06 × 21,773.97
  4. Step 4: Simplify right side
    71,694.08x = 2,341,595,814.21
  5. Step 5: Solve for x
    x = 2,341,595,814.21/71,694.08
  6. Step 6: Final answer
    x = 32,660.94

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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.