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Finding the Fourth Proportional to 4,889.75, 6,747.85 and 2,651.63

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Solution

The fourth proportional to 4,889.75, 6,747.85 and 2,651.63 is: 3,659.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889.75 : 6,747.85 = 2,651.63 : x
  2. Step 2: Convert to fraction form
    4,889.75/6,747.85 = 2,651.63/x
  3. Step 3: Cross multiply
    4,889.75x = 6,747.85 × 2,651.63
  4. Step 4: Simplify right side
    4,889.75x = 17,892,759.88
  5. Step 5: Solve for x
    x = 17,892,759.88/4,889.75
  6. Step 6: Final answer
    x = 3,659.24

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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.