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Finding the Fourth Proportional to 2,551.84, 3,825.90 and 1,254.22

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Solution

The fourth proportional to 2,551.84, 3,825.90 and 1,254.22 is: 1,880.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.84 : 3,825.90 = 1,254.22 : x
  2. Step 2: Convert to fraction form
    2,551.84/3,825.90 = 1,254.22/x
  3. Step 3: Cross multiply
    2,551.84x = 3,825.90 × 1,254.22
  4. Step 4: Simplify right side
    2,551.84x = 4,798,520.30
  5. Step 5: Solve for x
    x = 4,798,520.30/2,551.84
  6. Step 6: Final answer
    x = 1,880.42

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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.