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Finding the Fourth Proportional to 66,520.58, 91,797.68 and 36,305.66

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Solution

The fourth proportional to 66,520.58, 91,797.68 and 36,305.66 is: 50,101.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,520.58 : 91,797.68 = 36,305.66 : x
  2. Step 2: Convert to fraction form
    66,520.58/91,797.68 = 36,305.66/x
  3. Step 3: Cross multiply
    66,520.58x = 91,797.68 × 36,305.66
  4. Step 4: Simplify right side
    66,520.58x = 3,332,775,358.87
  5. Step 5: Solve for x
    x = 3,332,775,358.87/66,520.58
  6. Step 6: Final answer
    x = 50,101.42

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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.