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Finding the Fourth Proportional to 66,363.96, 91,584.60 and 36,149.88

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Solution

The fourth proportional to 66,363.96, 91,584.60 and 36,149.88 is: 49,888.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,363.96 : 91,584.60 = 36,149.88 : x
  2. Step 2: Convert to fraction form
    66,363.96/91,584.60 = 36,149.88/x
  3. Step 3: Cross multiply
    66,363.96x = 91,584.60 × 36,149.88
  4. Step 4: Simplify right side
    66,363.96x = 3,310,772,299.85
  5. Step 5: Solve for x
    x = 3,310,772,299.85/66,363.96
  6. Step 6: Final answer
    x = 49,888.11

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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.