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Finding the Fourth Proportional to 3,531.98, 4,874.12 and 1,960.08

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Solution

The fourth proportional to 3,531.98, 4,874.12 and 1,960.08 is: 2,704.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.98 : 4,874.12 = 1,960.08 : x
  2. Step 2: Convert to fraction form
    3,531.98/4,874.12 = 1,960.08/x
  3. Step 3: Cross multiply
    3,531.98x = 4,874.12 × 1,960.08
  4. Step 4: Simplify right side
    3,531.98x = 9,553,665.13
  5. Step 5: Solve for x
    x = 9,553,665.13/3,531.98
  6. Step 6: Final answer
    x = 2,704.90

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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.