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Finding the Fourth Proportional to 2,589.48, 3,903.74 and 2,422.44

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Solution

The fourth proportional to 2,589.48, 3,903.74 and 2,422.44 is: 3,651.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,589.48 : 3,903.74 = 2,422.44 : x
  2. Step 2: Convert to fraction form
    2,589.48/3,903.74 = 2,422.44/x
  3. Step 3: Cross multiply
    2,589.48x = 3,903.74 × 2,422.44
  4. Step 4: Simplify right side
    2,589.48x = 9,456,575.93
  5. Step 5: Solve for x
    x = 9,456,575.93/2,589.48
  6. Step 6: Final answer
    x = 3,651.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.