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Finding the Fourth Proportional to 6,571.46, 9,855.70 and 1,891.46

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Solution

The fourth proportional to 6,571.46, 9,855.70 and 1,891.46 is: 2,836.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,571.46 : 9,855.70 = 1,891.46 : x
  2. Step 2: Convert to fraction form
    6,571.46/9,855.70 = 1,891.46/x
  3. Step 3: Cross multiply
    6,571.46x = 9,855.70 × 1,891.46
  4. Step 4: Simplify right side
    6,571.46x = 18,641,662.32
  5. Step 5: Solve for x
    x = 18,641,662.32/6,571.46
  6. Step 6: Final answer
    x = 2,836.76

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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.