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Finding the Fourth Proportional to 54,383.66, 81,558.21 and 36,965.42

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Solution

The fourth proportional to 54,383.66, 81,558.21 and 36,965.42 is: 55,436.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,383.66 : 81,558.21 = 36,965.42 : x
  2. Step 2: Convert to fraction form
    54,383.66/81,558.21 = 36,965.42/x
  3. Step 3: Cross multiply
    54,383.66x = 81,558.21 × 36,965.42
  4. Step 4: Simplify right side
    54,383.66x = 3,014,833,487.10
  5. Step 5: Solve for x
    x = 3,014,833,487.10/54,383.66
  6. Step 6: Final answer
    x = 55,436.38

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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.