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Finding the Fourth Proportional to 50,551.90, 69,761.17 and 27,891.09

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Solution

The fourth proportional to 50,551.90, 69,761.17 and 27,891.09 is: 38,489.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,551.90 : 69,761.17 = 27,891.09 : x
  2. Step 2: Convert to fraction form
    50,551.90/69,761.17 = 27,891.09/x
  3. Step 3: Cross multiply
    50,551.90x = 69,761.17 × 27,891.09
  4. Step 4: Simplify right side
    50,551.90x = 1,945,715,070.98
  5. Step 5: Solve for x
    x = 1,945,715,070.98/50,551.90
  6. Step 6: Final answer
    x = 38,489.45

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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.