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Finding the Fourth Proportional to 5,625.63, 7,759.94 and 3,944.61

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Solution

The fourth proportional to 5,625.63, 7,759.94 and 3,944.61 is: 5,441.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,625.63 : 7,759.94 = 3,944.61 : x
  2. Step 2: Convert to fraction form
    5,625.63/7,759.94 = 3,944.61/x
  3. Step 3: Cross multiply
    5,625.63x = 7,759.94 × 3,944.61
  4. Step 4: Simplify right side
    5,625.63x = 30,609,917.20
  5. Step 5: Solve for x
    x = 30,609,917.20/5,625.63
  6. Step 6: Final answer
    x = 5,441.15

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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.