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Finding the Fourth Proportional to 2,654.44, 3,661.86 and 1,825

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Solution

The fourth proportional to 2,654.44, 3,661.86 and 1,825 is: 2,517.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,654.44 : 3,661.86 = 1,825 : x
  2. Step 2: Convert to fraction form
    2,654.44/3,661.86 = 1,825/x
  3. Step 3: Cross multiply
    2,654.44x = 3,661.86 × 1,825
  4. Step 4: Simplify right side
    2,654.44x = 6,682,894.50
  5. Step 5: Solve for x
    x = 6,682,894.50/2,654.44
  6. Step 6: Final answer
    x = 2,517.63

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Why These Related Problems?

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