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Finding the Fourth Proportional to 3,761.06, 5,187.11 and 2,819.06

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Solution

The fourth proportional to 3,761.06, 5,187.11 and 2,819.06 is: 3,887.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.06 : 5,187.11 = 2,819.06 : x
  2. Step 2: Convert to fraction form
    3,761.06/5,187.11 = 2,819.06/x
  3. Step 3: Cross multiply
    3,761.06x = 5,187.11 × 2,819.06
  4. Step 4: Simplify right side
    3,761.06x = 14,622,734.29
  5. Step 5: Solve for x
    x = 14,622,734.29/3,761.06
  6. Step 6: Final answer
    x = 3,887.93

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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.