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Finding the Fourth Proportional to 3,579.78, 5,363.90 and 3,444.92

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Solution

The fourth proportional to 3,579.78, 5,363.90 and 3,444.92 is: 5,161.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.78 : 5,363.90 = 3,444.92 : x
  2. Step 2: Convert to fraction form
    3,579.78/5,363.90 = 3,444.92/x
  3. Step 3: Cross multiply
    3,579.78x = 5,363.90 × 3,444.92
  4. Step 4: Simplify right side
    3,579.78x = 18,478,206.39
  5. Step 5: Solve for x
    x = 18,478,206.39/3,579.78
  6. Step 6: Final answer
    x = 5,161.83

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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.