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Finding the Fourth Proportional to 29,956.80, 44,939.20 and 10,230.40

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Solution

The fourth proportional to 29,956.80, 44,939.20 and 10,230.40 is: 15,346.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,956.80 : 44,939.20 = 10,230.40 : x
  2. Step 2: Convert to fraction form
    29,956.80/44,939.20 = 10,230.40/x
  3. Step 3: Cross multiply
    29,956.80x = 44,939.20 × 10,230.40
  4. Step 4: Simplify right side
    29,956.80x = 459,745,991.68
  5. Step 5: Solve for x
    x = 459,745,991.68/29,956.80
  6. Step 6: Final answer
    x = 15,346.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.