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Finding the Fourth Proportional to 36,846.21, 50,847.78 and 21,739.05

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Solution

The fourth proportional to 36,846.21, 50,847.78 and 21,739.05 is: 29,999.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,846.21 : 50,847.78 = 21,739.05 : x
  2. Step 2: Convert to fraction form
    36,846.21/50,847.78 = 21,739.05/x
  3. Step 3: Cross multiply
    36,846.21x = 50,847.78 × 21,739.05
  4. Step 4: Simplify right side
    36,846.21x = 1,105,382,431.81
  5. Step 5: Solve for x
    x = 1,105,382,431.81/36,846.21
  6. Step 6: Final answer
    x = 29,999.90

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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.