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Finding the Fourth Proportional to 3,546.88, 4,894.40 and 2,149.44

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Solution

The fourth proportional to 3,546.88, 4,894.40 and 2,149.44 is: 2,966.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,546.88 : 4,894.40 = 2,149.44 : x
  2. Step 2: Convert to fraction form
    3,546.88/4,894.40 = 2,149.44/x
  3. Step 3: Cross multiply
    3,546.88x = 4,894.40 × 2,149.44
  4. Step 4: Simplify right side
    3,546.88x = 10,520,219.14
  5. Step 5: Solve for x
    x = 10,520,219.14/3,546.88
  6. Step 6: Final answer
    x = 2,966.05

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1.5x scale

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.