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Finding the Fourth Proportional to 87,632.80, 131,463.60 and 37,736.80

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Solution

The fourth proportional to 87,632.80, 131,463.60 and 37,736.80 is: 56,611.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,632.80 : 131,463.60 = 37,736.80 : x
  2. Step 2: Convert to fraction form
    87,632.80/131,463.60 = 37,736.80/x
  3. Step 3: Cross multiply
    87,632.80x = 131,463.60 × 37,736.80
  4. Step 4: Simplify right side
    87,632.80x = 4,961,015,580.48
  5. Step 5: Solve for x
    x = 4,961,015,580.48/87,632.80
  6. Step 6: Final answer
    x = 56,611.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.