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Finding the Fourth Proportional to 50,605.75, 69,835.94 and 28,249.75

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Solution

The fourth proportional to 50,605.75, 69,835.94 and 28,249.75 is: 38,984.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,605.75 : 69,835.94 = 28,249.75 : x
  2. Step 2: Convert to fraction form
    50,605.75/69,835.94 = 28,249.75/x
  3. Step 3: Cross multiply
    50,605.75x = 69,835.94 × 28,249.75
  4. Step 4: Simplify right side
    50,605.75x = 1,972,847,846.02
  5. Step 5: Solve for x
    x = 1,972,847,846.02/50,605.75
  6. Step 6: Final answer
    x = 38,984.66

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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.