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Finding the Fourth Proportional to 3,163.26, 4,366.78 and 1,836.71

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Solution

The fourth proportional to 3,163.26, 4,366.78 and 1,836.71 is: 2,535.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.26 : 4,366.78 = 1,836.71 : x
  2. Step 2: Convert to fraction form
    3,163.26/4,366.78 = 1,836.71/x
  3. Step 3: Cross multiply
    3,163.26x = 4,366.78 × 1,836.71
  4. Step 4: Simplify right side
    3,163.26x = 8,020,482.07
  5. Step 5: Solve for x
    x = 8,020,482.07/3,163.26
  6. Step 6: Final answer
    x = 2,535.51

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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.