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Finding the Fourth Proportional to 43,924.92, 65,889.21 and 12,760.17

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Solution

The fourth proportional to 43,924.92, 65,889.21 and 12,760.17 is: 19,140.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,924.92 : 65,889.21 = 12,760.17 : x
  2. Step 2: Convert to fraction form
    43,924.92/65,889.21 = 12,760.17/x
  3. Step 3: Cross multiply
    43,924.92x = 65,889.21 × 12,760.17
  4. Step 4: Simplify right side
    43,924.92x = 840,757,620.38
  5. Step 5: Solve for x
    x = 840,757,620.38/43,924.92
  6. Step 6: Final answer
    x = 19,140.79

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1.5x scale

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.