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Finding the Fourth Proportional to 2,819.97, 4,206.11 and 2,657.36

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Solution

The fourth proportional to 2,819.97, 4,206.11 and 2,657.36 is: 3,963.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.97 : 4,206.11 = 2,657.36 : x
  2. Step 2: Convert to fraction form
    2,819.97/4,206.11 = 2,657.36/x
  3. Step 3: Cross multiply
    2,819.97x = 4,206.11 × 2,657.36
  4. Step 4: Simplify right side
    2,819.97x = 11,177,148.47
  5. Step 5: Solve for x
    x = 11,177,148.47/2,819.97
  6. Step 6: Final answer
    x = 3,963.57

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.