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Finding the Fourth Proportional to 13,843.35, 20,765.07 and 5,525.46

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Solution

The fourth proportional to 13,843.35, 20,765.07 and 5,525.46 is: 8,288.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,843.35 : 20,765.07 = 5,525.46 : x
  2. Step 2: Convert to fraction form
    13,843.35/20,765.07 = 5,525.46/x
  3. Step 3: Cross multiply
    13,843.35x = 20,765.07 × 5,525.46
  4. Step 4: Simplify right side
    13,843.35x = 114,736,563.68
  5. Step 5: Solve for x
    x = 114,736,563.68/13,843.35
  6. Step 6: Final answer
    x = 8,288.21

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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.