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Finding the Fourth Proportional to 57,910.44, 86,885.10 and 18,473.16

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Solution

The fourth proportional to 57,910.44, 86,885.10 and 18,473.16 is: 27,715.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,910.44 : 86,885.10 = 18,473.16 : x
  2. Step 2: Convert to fraction form
    57,910.44/86,885.10 = 18,473.16/x
  3. Step 3: Cross multiply
    57,910.44x = 86,885.10 × 18,473.16
  4. Step 4: Simplify right side
    57,910.44x = 1,605,042,353.92
  5. Step 5: Solve for x
    x = 1,605,042,353.92/57,910.44
  6. Step 6: Final answer
    x = 27,715.94

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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.