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Finding the Fourth Proportional to 66,546.34, 91,834.08 and 36,331.66

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Solution

The fourth proportional to 66,546.34, 91,834.08 and 36,331.66 is: 50,137.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,546.34 : 91,834.08 = 36,331.66 : x
  2. Step 2: Convert to fraction form
    66,546.34/91,834.08 = 36,331.66/x
  3. Step 3: Cross multiply
    66,546.34x = 91,834.08 × 36,331.66
  4. Step 4: Simplify right side
    66,546.34x = 3,336,484,570.97
  5. Step 5: Solve for x
    x = 3,336,484,570.97/66,546.34
  6. Step 6: Final answer
    x = 50,137.76

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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.