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Finding the Fourth Proportional to 3,809.45, 5,711.49 and 1,467.50

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Solution

The fourth proportional to 3,809.45, 5,711.49 and 1,467.50 is: 2,200.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.45 : 5,711.49 = 1,467.50 : x
  2. Step 2: Convert to fraction form
    3,809.45/5,711.49 = 1,467.50/x
  3. Step 3: Cross multiply
    3,809.45x = 5,711.49 × 1,467.50
  4. Step 4: Simplify right side
    3,809.45x = 8,381,583.02
  5. Step 5: Solve for x
    x = 8,381,583.02/3,809.45
  6. Step 6: Final answer
    x = 2,200.21

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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.