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Finding the Fourth Proportional to 33,999.80, 50,942.13 and 20,824.64

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Solution

The fourth proportional to 33,999.80, 50,942.13 and 20,824.64 is: 31,201.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,999.80 : 50,942.13 = 20,824.64 : x
  2. Step 2: Convert to fraction form
    33,999.80/50,942.13 = 20,824.64/x
  3. Step 3: Cross multiply
    33,999.80x = 50,942.13 × 20,824.64
  4. Step 4: Simplify right side
    33,999.80x = 1,060,851,518.08
  5. Step 5: Solve for x
    x = 1,060,851,518.08/33,999.80
  6. Step 6: Final answer
    x = 31,201.70

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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.