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Finding the Fourth Proportional to 10,571.68, 15,855.84 and 3,550.96

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Solution

The fourth proportional to 10,571.68, 15,855.84 and 3,550.96 is: 5,325.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,571.68 : 15,855.84 = 3,550.96 : x
  2. Step 2: Convert to fraction form
    10,571.68/15,855.84 = 3,550.96/x
  3. Step 3: Cross multiply
    10,571.68x = 15,855.84 × 3,550.96
  4. Step 4: Simplify right side
    10,571.68x = 56,303,453.61
  5. Step 5: Solve for x
    x = 56,303,453.61/10,571.68
  6. Step 6: Final answer
    x = 5,325.88

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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.