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Finding the Fourth Proportional to 50,990.86, 70,342.86 and 33,091.48

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Solution

The fourth proportional to 50,990.86, 70,342.86 and 33,091.48 is: 45,650.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,990.86 : 70,342.86 = 33,091.48 : x
  2. Step 2: Convert to fraction form
    50,990.86/70,342.86 = 33,091.48/x
  3. Step 3: Cross multiply
    50,990.86x = 70,342.86 × 33,091.48
  4. Step 4: Simplify right side
    50,990.86x = 2,327,749,344.83
  5. Step 5: Solve for x
    x = 2,327,749,344.83/50,990.86
  6. Step 6: Final answer
    x = 45,650.33

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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.