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Finding the Fourth Proportional to 2,786.83, 4,172.16 and 2,096.33

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Solution

The fourth proportional to 2,786.83, 4,172.16 and 2,096.33 is: 3,138.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.83 : 4,172.16 = 2,096.33 : x
  2. Step 2: Convert to fraction form
    2,786.83/4,172.16 = 2,096.33/x
  3. Step 3: Cross multiply
    2,786.83x = 4,172.16 × 2,096.33
  4. Step 4: Simplify right side
    2,786.83x = 8,746,222.85
  5. Step 5: Solve for x
    x = 8,746,222.85/2,786.83
  6. Step 6: Final answer
    x = 3,138.41

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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.