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Finding the Fourth Proportional to 72,674.73, 100,292.22 and 40,843.62

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Solution

The fourth proportional to 72,674.73, 100,292.22 and 40,843.62 is: 56,364.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,674.73 : 100,292.22 = 40,843.62 : x
  2. Step 2: Convert to fraction form
    72,674.73/100,292.22 = 40,843.62/x
  3. Step 3: Cross multiply
    72,674.73x = 100,292.22 × 40,843.62
  4. Step 4: Simplify right side
    72,674.73x = 4,096,297,322.64
  5. Step 5: Solve for x
    x = 4,096,297,322.64/72,674.73
  6. Step 6: Final answer
    x = 56,364.81

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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.