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Finding the Fourth Proportional to 33,999.20, 50,998.80 and 30,543.20

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Solution

The fourth proportional to 33,999.20, 50,998.80 and 30,543.20 is: 45,814.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,999.20 : 50,998.80 = 30,543.20 : x
  2. Step 2: Convert to fraction form
    33,999.20/50,998.80 = 30,543.20/x
  3. Step 3: Cross multiply
    33,999.20x = 50,998.80 × 30,543.20
  4. Step 4: Simplify right side
    33,999.20x = 1,557,666,548.16
  5. Step 5: Solve for x
    x = 1,557,666,548.16/33,999.20
  6. Step 6: Final answer
    x = 45,814.80

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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.