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Finding the Fourth Proportional to 3,503.58, 5,249.88 and 2,981.43

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Solution

The fourth proportional to 3,503.58, 5,249.88 and 2,981.43 is: 4,467.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,503.58 : 5,249.88 = 2,981.43 : x
  2. Step 2: Convert to fraction form
    3,503.58/5,249.88 = 2,981.43/x
  3. Step 3: Cross multiply
    3,503.58x = 5,249.88 × 2,981.43
  4. Step 4: Simplify right side
    3,503.58x = 15,652,149.73
  5. Step 5: Solve for x
    x = 15,652,149.73/3,503.58
  6. Step 6: Final answer
    x = 4,467.47

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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.