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Finding the Fourth Proportional to 66,376.92, 91,601.22 and 36,163.68

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Solution

The fourth proportional to 66,376.92, 91,601.22 and 36,163.68 is: 49,906.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,376.92 : 91,601.22 = 36,163.68 : x
  2. Step 2: Convert to fraction form
    66,376.92/91,601.22 = 36,163.68/x
  3. Step 3: Cross multiply
    66,376.92x = 91,601.22 × 36,163.68
  4. Step 4: Simplify right side
    66,376.92x = 3,312,637,207.69
  5. Step 5: Solve for x
    x = 3,312,637,207.69/66,376.92
  6. Step 6: Final answer
    x = 49,906.46

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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.