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Finding the Fourth Proportional to 66,861.92, 92,270.54 and 36,650.14

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Solution

The fourth proportional to 66,861.92, 92,270.54 and 36,650.14 is: 50,577.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,861.92 : 92,270.54 = 36,650.14 : x
  2. Step 2: Convert to fraction form
    66,861.92/92,270.54 = 36,650.14/x
  3. Step 3: Cross multiply
    66,861.92x = 92,270.54 × 36,650.14
  4. Step 4: Simplify right side
    66,861.92x = 3,381,728,208.88
  5. Step 5: Solve for x
    x = 3,381,728,208.88/66,861.92
  6. Step 6: Final answer
    x = 50,577.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.