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Finding the Fourth Proportional to 50,899.55, 70,249.81 and 28,245.82

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Solution

The fourth proportional to 50,899.55, 70,249.81 and 28,245.82 is: 38,983.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,899.55 : 70,249.81 = 28,245.82 : x
  2. Step 2: Convert to fraction form
    50,899.55/70,249.81 = 28,245.82/x
  3. Step 3: Cross multiply
    50,899.55x = 70,249.81 × 28,245.82
  4. Step 4: Simplify right side
    50,899.55x = 1,984,263,295.02
  5. Step 5: Solve for x
    x = 1,984,263,295.02/50,899.55
  6. Step 6: Final answer
    x = 38,983.91

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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.