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Finding the Fourth Proportional to 71,997.93, 107,985.96 and 27,645.57

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Solution

The fourth proportional to 71,997.93, 107,985.96 and 27,645.57 is: 41,464.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,997.93 : 107,985.96 = 27,645.57 : x
  2. Step 2: Convert to fraction form
    71,997.93/107,985.96 = 27,645.57/x
  3. Step 3: Cross multiply
    71,997.93x = 107,985.96 × 27,645.57
  4. Step 4: Simplify right side
    71,997.93x = 2,985,333,416.20
  5. Step 5: Solve for x
    x = 2,985,333,416.20/71,997.93
  6. Step 6: Final answer
    x = 41,464.16

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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.