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Finding the Fourth Proportional to 2,961.01, 4,083.70 and 2,216.73

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Solution

The fourth proportional to 2,961.01, 4,083.70 and 2,216.73 is: 3,057.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.01 : 4,083.70 = 2,216.73 : x
  2. Step 2: Convert to fraction form
    2,961.01/4,083.70 = 2,216.73/x
  3. Step 3: Cross multiply
    2,961.01x = 4,083.70 × 2,216.73
  4. Step 4: Simplify right side
    2,961.01x = 9,052,460.30
  5. Step 5: Solve for x
    x = 9,052,460.30/2,961.01
  6. Step 6: Final answer
    x = 3,057.22

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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.