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Finding the Fourth Proportional to 57,808.31, 86,712.47 and 16,255.31

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Solution

The fourth proportional to 57,808.31, 86,712.47 and 16,255.31 is: 24,382.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,808.31 : 86,712.47 = 16,255.31 : x
  2. Step 2: Convert to fraction form
    57,808.31/86,712.47 = 16,255.31/x
  3. Step 3: Cross multiply
    57,808.31x = 86,712.47 × 16,255.31
  4. Step 4: Simplify right side
    57,808.31x = 1,409,538,338.14
  5. Step 5: Solve for x
    x = 1,409,538,338.14/57,808.31
  6. Step 6: Final answer
    x = 24,382.97

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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.