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Finding the Fourth Proportional to 2,672.39, 4,007.37 and 2,056.49

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Solution

The fourth proportional to 2,672.39, 4,007.37 and 2,056.49 is: 3,083.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.39 : 4,007.37 = 2,056.49 : x
  2. Step 2: Convert to fraction form
    2,672.39/4,007.37 = 2,056.49/x
  3. Step 3: Cross multiply
    2,672.39x = 4,007.37 × 2,056.49
  4. Step 4: Simplify right side
    2,672.39x = 8,241,119.03
  5. Step 5: Solve for x
    x = 8,241,119.03/2,672.39
  6. Step 6: Final answer
    x = 3,083.80

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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.