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Finding the Fourth Proportional to 2,833.98, 3,910.47 and 1,591.74

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Solution

The fourth proportional to 2,833.98, 3,910.47 and 1,591.74 is: 2,196.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,833.98 : 3,910.47 = 1,591.74 : x
  2. Step 2: Convert to fraction form
    2,833.98/3,910.47 = 1,591.74/x
  3. Step 3: Cross multiply
    2,833.98x = 3,910.47 × 1,591.74
  4. Step 4: Simplify right side
    2,833.98x = 6,224,451.52
  5. Step 5: Solve for x
    x = 6,224,451.52/2,833.98
  6. Step 6: Final answer
    x = 2,196.36

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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.