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Finding the Fourth Proportional to 4,959.56, 7,441.12 and 2,185.90

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Solution

The fourth proportional to 4,959.56, 7,441.12 and 2,185.90 is: 3,279.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,959.56 : 7,441.12 = 2,185.90 : x
  2. Step 2: Convert to fraction form
    4,959.56/7,441.12 = 2,185.90/x
  3. Step 3: Cross multiply
    4,959.56x = 7,441.12 × 2,185.90
  4. Step 4: Simplify right side
    4,959.56x = 16,265,544.21
  5. Step 5: Solve for x
    x = 16,265,544.21/4,959.56
  6. Step 6: Final answer
    x = 3,279.63

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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.