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Finding the Fourth Proportional to 50,489.82, 69,687.99 and 29,280.78

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Solution

The fourth proportional to 50,489.82, 69,687.99 and 29,280.78 is: 40,414.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,489.82 : 69,687.99 = 29,280.78 : x
  2. Step 2: Convert to fraction form
    50,489.82/69,687.99 = 29,280.78/x
  3. Step 3: Cross multiply
    50,489.82x = 69,687.99 × 29,280.78
  4. Step 4: Simplify right side
    50,489.82x = 2,040,518,703.83
  5. Step 5: Solve for x
    x = 2,040,518,703.83/50,489.82
  6. Step 6: Final answer
    x = 40,414.46

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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.