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Finding the Fourth Proportional to 8,816.56, 13,224.72 and 2,660.56

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Solution

The fourth proportional to 8,816.56, 13,224.72 and 2,660.56 is: 3,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,816.56 : 13,224.72 = 2,660.56 : x
  2. Step 2: Convert to fraction form
    8,816.56/13,224.72 = 2,660.56/x
  3. Step 3: Cross multiply
    8,816.56x = 13,224.72 × 2,660.56
  4. Step 4: Simplify right side
    8,816.56x = 35,185,161.04
  5. Step 5: Solve for x
    x = 35,185,161.04/8,816.56
  6. Step 6: Final answer
    x = 3,990.80

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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.