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Finding the Fourth Proportional to 66,555.92, 91,850.89 and 36,344.05

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Solution

The fourth proportional to 66,555.92, 91,850.89 and 36,344.05 is: 50,156.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,555.92 : 91,850.89 = 36,344.05 : x
  2. Step 2: Convert to fraction form
    66,555.92/91,850.89 = 36,344.05/x
  3. Step 3: Cross multiply
    66,555.92x = 91,850.89 × 36,344.05
  4. Step 4: Simplify right side
    66,555.92x = 3,338,232,697.73
  5. Step 5: Solve for x
    x = 3,338,232,697.73/66,555.92
  6. Step 6: Final answer
    x = 50,156.81

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1.5x scale

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.