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Finding the Fourth Proportional to 16,789.65, 25,183.02 and 7,902.87

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Solution

The fourth proportional to 16,789.65, 25,183.02 and 7,902.87 is: 11,853.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,789.65 : 25,183.02 = 7,902.87 : x
  2. Step 2: Convert to fraction form
    16,789.65/25,183.02 = 7,902.87/x
  3. Step 3: Cross multiply
    16,789.65x = 25,183.02 × 7,902.87
  4. Step 4: Simplify right side
    16,789.65x = 199,018,133.27
  5. Step 5: Solve for x
    x = 199,018,133.27/16,789.65
  6. Step 6: Final answer
    x = 11,853.62

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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.