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Finding the Fourth Proportional to 3,504.99, 5,265.12 and 2,118.98

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Solution

The fourth proportional to 3,504.99, 5,265.12 and 2,118.98 is: 3,183.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,504.99 : 5,265.12 = 2,118.98 : x
  2. Step 2: Convert to fraction form
    3,504.99/5,265.12 = 2,118.98/x
  3. Step 3: Cross multiply
    3,504.99x = 5,265.12 × 2,118.98
  4. Step 4: Simplify right side
    3,504.99x = 11,156,702.44
  5. Step 5: Solve for x
    x = 11,156,702.44/3,504.99
  6. Step 6: Final answer
    x = 3,183.09

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1.5x scale

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.