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Finding the Fourth Proportional to 10,399.75, 14,351.75 and 5,923.44

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Solution

The fourth proportional to 10,399.75, 14,351.75 and 5,923.44 is: 8,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,399.75 : 14,351.75 = 5,923.44 : x
  2. Step 2: Convert to fraction form
    10,399.75/14,351.75 = 5,923.44/x
  3. Step 3: Cross multiply
    10,399.75x = 14,351.75 × 5,923.44
  4. Step 4: Simplify right side
    10,399.75x = 85,011,722.62
  5. Step 5: Solve for x
    x = 85,011,722.62/10,399.75
  6. Step 6: Final answer
    x = 8,174.40

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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.