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Finding the Fourth Proportional to 13,773.14, 20,661.07 and 4,410.80

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Solution

The fourth proportional to 13,773.14, 20,661.07 and 4,410.80 is: 6,616.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,773.14 : 20,661.07 = 4,410.80 : x
  2. Step 2: Convert to fraction form
    13,773.14/20,661.07 = 4,410.80/x
  3. Step 3: Cross multiply
    13,773.14x = 20,661.07 × 4,410.80
  4. Step 4: Simplify right side
    13,773.14x = 91,131,847.56
  5. Step 5: Solve for x
    x = 91,131,847.56/13,773.14
  6. Step 6: Final answer
    x = 6,616.64

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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.