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Finding the Fourth Proportional to 3,544.79, 4,891.74 and 2,219.22

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Solution

The fourth proportional to 3,544.79, 4,891.74 and 2,219.22 is: 3,062.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,544.79 : 4,891.74 = 2,219.22 : x
  2. Step 2: Convert to fraction form
    3,544.79/4,891.74 = 2,219.22/x
  3. Step 3: Cross multiply
    3,544.79x = 4,891.74 × 2,219.22
  4. Step 4: Simplify right side
    3,544.79x = 10,855,847.24
  5. Step 5: Solve for x
    x = 10,855,847.24/3,544.79
  6. Step 6: Final answer
    x = 3,062.48

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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.