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Finding the Fourth Proportional to 2,885.54, 3,982.02 and 1,626.60

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Solution

The fourth proportional to 2,885.54, 3,982.02 and 1,626.60 is: 2,244.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.54 : 3,982.02 = 1,626.60 : x
  2. Step 2: Convert to fraction form
    2,885.54/3,982.02 = 1,626.60/x
  3. Step 3: Cross multiply
    2,885.54x = 3,982.02 × 1,626.60
  4. Step 4: Simplify right side
    2,885.54x = 6,477,153.73
  5. Step 5: Solve for x
    x = 6,477,153.73/2,885.54
  6. Step 6: Final answer
    x = 2,244.69

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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.