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Finding the Fourth Proportional to 7,914.87, 11,872.13 and 4,588.09

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Solution

The fourth proportional to 7,914.87, 11,872.13 and 4,588.09 is: 6,882.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.87 : 11,872.13 = 4,588.09 : x
  2. Step 2: Convert to fraction form
    7,914.87/11,872.13 = 4,588.09/x
  3. Step 3: Cross multiply
    7,914.87x = 11,872.13 × 4,588.09
  4. Step 4: Simplify right side
    7,914.87x = 54,470,348.31
  5. Step 5: Solve for x
    x = 54,470,348.31/7,914.87
  6. Step 6: Final answer
    x = 6,882.03

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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.