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Finding the Fourth Proportional to 4,920.57, 6,790.29 and 2,682.46

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Solution

The fourth proportional to 4,920.57, 6,790.29 and 2,682.46 is: 3,701.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.57 : 6,790.29 = 2,682.46 : x
  2. Step 2: Convert to fraction form
    4,920.57/6,790.29 = 2,682.46/x
  3. Step 3: Cross multiply
    4,920.57x = 6,790.29 × 2,682.46
  4. Step 4: Simplify right side
    4,920.57x = 18,214,689.80
  5. Step 5: Solve for x
    x = 18,214,689.80/4,920.57
  6. Step 6: Final answer
    x = 3,701.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.