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Finding the Fourth Proportional to 36,961.20, 55,441.80 and 22,186.80

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Solution

The fourth proportional to 36,961.20, 55,441.80 and 22,186.80 is: 33,280.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,961.20 : 55,441.80 = 22,186.80 : x
  2. Step 2: Convert to fraction form
    36,961.20/55,441.80 = 22,186.80/x
  3. Step 3: Cross multiply
    36,961.20x = 55,441.80 × 22,186.80
  4. Step 4: Simplify right side
    36,961.20x = 1,230,076,128.24
  5. Step 5: Solve for x
    x = 1,230,076,128.24/36,961.20
  6. Step 6: Final answer
    x = 33,280.20

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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.