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Finding the Fourth Proportional to 50,651.70, 69,898.37 and 27,990.19

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Solution

The fourth proportional to 50,651.70, 69,898.37 and 27,990.19 is: 38,625.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,651.70 : 69,898.37 = 27,990.19 : x
  2. Step 2: Convert to fraction form
    50,651.70/69,898.37 = 27,990.19/x
  3. Step 3: Cross multiply
    50,651.70x = 69,898.37 × 27,990.19
  4. Step 4: Simplify right side
    50,651.70x = 1,956,468,604.41
  5. Step 5: Solve for x
    x = 1,956,468,604.41/50,651.70
  6. Step 6: Final answer
    x = 38,625.92

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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.