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Finding the Fourth Proportional to 50,366.70, 69,478.42 and 31,239.87

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Solution

The fourth proportional to 50,366.70, 69,478.42 and 31,239.87 is: 43,093.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,366.70 : 69,478.42 = 31,239.87 : x
  2. Step 2: Convert to fraction form
    50,366.70/69,478.42 = 31,239.87/x
  3. Step 3: Cross multiply
    50,366.70x = 69,478.42 × 31,239.87
  4. Step 4: Simplify right side
    50,366.70x = 2,170,496,808.61
  5. Step 5: Solve for x
    x = 2,170,496,808.61/50,366.70
  6. Step 6: Final answer
    x = 43,093.89

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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.