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Finding the Fourth Proportional to 4,959.83, 7,431.84 and 2,619.74

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Solution

The fourth proportional to 4,959.83, 7,431.84 and 2,619.74 is: 3,925.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,959.83 : 7,431.84 = 2,619.74 : x
  2. Step 2: Convert to fraction form
    4,959.83/7,431.84 = 2,619.74/x
  3. Step 3: Cross multiply
    4,959.83x = 7,431.84 × 2,619.74
  4. Step 4: Simplify right side
    4,959.83x = 19,469,488.52
  5. Step 5: Solve for x
    x = 19,469,488.52/4,959.83
  6. Step 6: Final answer
    x = 3,925.43

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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.