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Finding the Fourth Proportional to 8,364.99, 12,544.72 and 2,816.96

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Solution

The fourth proportional to 8,364.99, 12,544.72 and 2,816.96 is: 4,224.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,364.99 : 12,544.72 = 2,816.96 : x
  2. Step 2: Convert to fraction form
    8,364.99/12,544.72 = 2,816.96/x
  3. Step 3: Cross multiply
    8,364.99x = 12,544.72 × 2,816.96
  4. Step 4: Simplify right side
    8,364.99x = 35,337,951.85
  5. Step 5: Solve for x
    x = 35,337,951.85/8,364.99
  6. Step 6: Final answer
    x = 4,224.51

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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.