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Finding the Fourth Proportional to 2,683.20, 4,025.10 and 833.88

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Solution

The fourth proportional to 2,683.20, 4,025.10 and 833.88 is: 1,250.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,683.20 : 4,025.10 = 833.88 : x
  2. Step 2: Convert to fraction form
    2,683.20/4,025.10 = 833.88/x
  3. Step 3: Cross multiply
    2,683.20x = 4,025.10 × 833.88
  4. Step 4: Simplify right side
    2,683.20x = 3,356,450.39
  5. Step 5: Solve for x
    x = 3,356,450.39/2,683.20
  6. Step 6: Final answer
    x = 1,250.91

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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.