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Finding the Fourth Proportional to 71,662.63, 107,494.19 and 21,743.14

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Solution

The fourth proportional to 71,662.63, 107,494.19 and 21,743.14 is: 32,614.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,662.63 : 107,494.19 = 21,743.14 : x
  2. Step 2: Convert to fraction form
    71,662.63/107,494.19 = 21,743.14/x
  3. Step 3: Cross multiply
    71,662.63x = 107,494.19 × 21,743.14
  4. Step 4: Simplify right side
    71,662.63x = 2,337,261,222.36
  5. Step 5: Solve for x
    x = 2,337,261,222.36/71,662.63
  6. Step 6: Final answer
    x = 32,614.78

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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.