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Finding the Fourth Proportional to 50,679.65, 69,949.01 and 29,471.15

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Solution

The fourth proportional to 50,679.65, 69,949.01 and 29,471.15 is: 40,676.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,679.65 : 69,949.01 = 29,471.15 : x
  2. Step 2: Convert to fraction form
    50,679.65/69,949.01 = 29,471.15/x
  3. Step 3: Cross multiply
    50,679.65x = 69,949.01 × 29,471.15
  4. Step 4: Simplify right side
    50,679.65x = 2,061,477,489.99
  5. Step 5: Solve for x
    x = 2,061,477,489.99/50,679.65
  6. Step 6: Final answer
    x = 40,676.64

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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.