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Finding the Fourth Proportional to 2,002.68, 2,763.74 and 1,118.54

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Solution

The fourth proportional to 2,002.68, 2,763.74 and 1,118.54 is: 1,543.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,002.68 : 2,763.74 = 1,118.54 : x
  2. Step 2: Convert to fraction form
    2,002.68/2,763.74 = 1,118.54/x
  3. Step 3: Cross multiply
    2,002.68x = 2,763.74 × 1,118.54
  4. Step 4: Simplify right side
    2,002.68x = 3,091,363.45
  5. Step 5: Solve for x
    x = 3,091,363.45/2,002.68
  6. Step 6: Final answer
    x = 1,543.61

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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.