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Finding the Fourth Proportional to 50,910.53, 70,256.57 and 28,249.43

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Solution

The fourth proportional to 50,910.53, 70,256.57 and 28,249.43 is: 38,984.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,910.53 : 70,256.57 = 28,249.43 : x
  2. Step 2: Convert to fraction form
    50,910.53/70,256.57 = 28,249.43/x
  3. Step 3: Cross multiply
    50,910.53x = 70,256.57 × 28,249.43
  4. Step 4: Simplify right side
    50,910.53x = 1,984,707,563.73
  5. Step 5: Solve for x
    x = 1,984,707,563.73/50,910.53
  6. Step 6: Final answer
    x = 38,984.23

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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.