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Finding the Fourth Proportional to 8,757.99, 12,086.03 and 5,614.18

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Solution

The fourth proportional to 8,757.99, 12,086.03 and 5,614.18 is: 7,747.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.99 : 12,086.03 = 5,614.18 : x
  2. Step 2: Convert to fraction form
    8,757.99/12,086.03 = 5,614.18/x
  3. Step 3: Cross multiply
    8,757.99x = 12,086.03 × 5,614.18
  4. Step 4: Simplify right side
    8,757.99x = 67,853,089.62
  5. Step 5: Solve for x
    x = 67,853,089.62/8,757.99
  6. Step 6: Final answer
    x = 7,747.56

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1.5x scale

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.