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Finding the Fourth Proportional to 2,099.41, 3,149.12 and 801.18

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Solution

The fourth proportional to 2,099.41, 3,149.12 and 801.18 is: 1,201.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099.41 : 3,149.12 = 801.18 : x
  2. Step 2: Convert to fraction form
    2,099.41/3,149.12 = 801.18/x
  3. Step 3: Cross multiply
    2,099.41x = 3,149.12 × 801.18
  4. Step 4: Simplify right side
    2,099.41x = 2,523,011.96
  5. Step 5: Solve for x
    x = 2,523,011.96/2,099.41
  6. Step 6: Final answer
    x = 1,201.77

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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.