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Finding the Fourth Proportional to 36,755.86, 50,723.08 and 20,840.30

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Solution

The fourth proportional to 36,755.86, 50,723.08 and 20,840.30 is: 28,759.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,755.86 : 50,723.08 = 20,840.30 : x
  2. Step 2: Convert to fraction form
    36,755.86/50,723.08 = 20,840.30/x
  3. Step 3: Cross multiply
    36,755.86x = 50,723.08 × 20,840.30
  4. Step 4: Simplify right side
    36,755.86x = 1,057,084,204.12
  5. Step 5: Solve for x
    x = 1,057,084,204.12/36,755.86
  6. Step 6: Final answer
    x = 28,759.61

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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.