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Finding the Fourth Proportional to 1,992.97, 2,755.11 and 1,826.92

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Solution

The fourth proportional to 1,992.97, 2,755.11 and 1,826.92 is: 2,525.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.97 : 2,755.11 = 1,826.92 : x
  2. Step 2: Convert to fraction form
    1,992.97/2,755.11 = 1,826.92/x
  3. Step 3: Cross multiply
    1,992.97x = 2,755.11 × 1,826.92
  4. Step 4: Simplify right side
    1,992.97x = 5,033,365.56
  5. Step 5: Solve for x
    x = 5,033,365.56/1,992.97
  6. Step 6: Final answer
    x = 2,525.56

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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.