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Finding the Fourth Proportional to 7,113.80, 10,672.22 and 2,183.80

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Solution

The fourth proportional to 7,113.80, 10,672.22 and 2,183.80 is: 3,276.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113.80 : 10,672.22 = 2,183.80 : x
  2. Step 2: Convert to fraction form
    7,113.80/10,672.22 = 2,183.80/x
  3. Step 3: Cross multiply
    7,113.80x = 10,672.22 × 2,183.80
  4. Step 4: Simplify right side
    7,113.80x = 23,305,994.04
  5. Step 5: Solve for x
    x = 23,305,994.04/7,113.80
  6. Step 6: Final answer
    x = 3,276.17

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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.