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Finding the Fourth Proportional to 3,649.25, 5,035.97 and 1,993.25

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Solution

The fourth proportional to 3,649.25, 5,035.97 and 1,993.25 is: 2,750.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,649.25 : 5,035.97 = 1,993.25 : x
  2. Step 2: Convert to fraction form
    3,649.25/5,035.97 = 1,993.25/x
  3. Step 3: Cross multiply
    3,649.25x = 5,035.97 × 1,993.25
  4. Step 4: Simplify right side
    3,649.25x = 10,037,947.20
  5. Step 5: Solve for x
    x = 10,037,947.20/3,649.25
  6. Step 6: Final answer
    x = 2,750.69

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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.