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Finding the Fourth Proportional to 6,494.19, 9,741.21 and 2,111.82

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Solution

The fourth proportional to 6,494.19, 9,741.21 and 2,111.82 is: 3,167.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,494.19 : 9,741.21 = 2,111.82 : x
  2. Step 2: Convert to fraction form
    6,494.19/9,741.21 = 2,111.82/x
  3. Step 3: Cross multiply
    6,494.19x = 9,741.21 × 2,111.82
  4. Step 4: Simplify right side
    6,494.19x = 20,571,682.10
  5. Step 5: Solve for x
    x = 20,571,682.10/6,494.19
  6. Step 6: Final answer
    x = 3,167.71

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.