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Finding the Fourth Proportional to 50,115.75, 69,159.87 and 27,759.75

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Solution

The fourth proportional to 50,115.75, 69,159.87 and 27,759.75 is: 38,308.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,115.75 : 69,159.87 = 27,759.75 : x
  2. Step 2: Convert to fraction form
    50,115.75/69,159.87 = 27,759.75/x
  3. Step 3: Cross multiply
    50,115.75x = 69,159.87 × 27,759.75
  4. Step 4: Simplify right side
    50,115.75x = 1,919,860,701.23
  5. Step 5: Solve for x
    x = 1,919,860,701.23/50,115.75
  6. Step 6: Final answer
    x = 38,308.53

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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.