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Finding the Fourth Proportional to 3,611.68, 4,983.24 and 2,039.44

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Solution

The fourth proportional to 3,611.68, 4,983.24 and 2,039.44 is: 2,813.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.68 : 4,983.24 = 2,039.44 : x
  2. Step 2: Convert to fraction form
    3,611.68/4,983.24 = 2,039.44/x
  3. Step 3: Cross multiply
    3,611.68x = 4,983.24 × 2,039.44
  4. Step 4: Simplify right side
    3,611.68x = 10,163,018.99
  5. Step 5: Solve for x
    x = 10,163,018.99/3,611.68
  6. Step 6: Final answer
    x = 2,813.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.