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Finding the Fourth Proportional to 47,999.20, 71,998.80 and 33,224.80

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Solution

The fourth proportional to 47,999.20, 71,998.80 and 33,224.80 is: 49,837.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,999.20 : 71,998.80 = 33,224.80 : x
  2. Step 2: Convert to fraction form
    47,999.20/71,998.80 = 33,224.80/x
  3. Step 3: Cross multiply
    47,999.20x = 71,998.80 × 33,224.80
  4. Step 4: Simplify right side
    47,999.20x = 2,392,145,730.24
  5. Step 5: Solve for x
    x = 2,392,145,730.24/47,999.20
  6. Step 6: Final answer
    x = 49,837.20

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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.