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Finding the Fourth Proportional to 2,716.61, 4,073.22 and 1,253.88

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Solution

The fourth proportional to 2,716.61, 4,073.22 and 1,253.88 is: 1,880.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,716.61 : 4,073.22 = 1,253.88 : x
  2. Step 2: Convert to fraction form
    2,716.61/4,073.22 = 1,253.88/x
  3. Step 3: Cross multiply
    2,716.61x = 4,073.22 × 1,253.88
  4. Step 4: Simplify right side
    2,716.61x = 5,107,329.09
  5. Step 5: Solve for x
    x = 5,107,329.09/2,716.61
  6. Step 6: Final answer
    x = 1,880.04

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Why These Related Problems?

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