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Finding the Fourth Proportional to 2,965.26, 4,092.22 and 1,639.12

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Solution

The fourth proportional to 2,965.26, 4,092.22 and 1,639.12 is: 2,262.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,965.26 : 4,092.22 = 1,639.12 : x
  2. Step 2: Convert to fraction form
    2,965.26/4,092.22 = 1,639.12/x
  3. Step 3: Cross multiply
    2,965.26x = 4,092.22 × 1,639.12
  4. Step 4: Simplify right side
    2,965.26x = 6,707,639.65
  5. Step 5: Solve for x
    x = 6,707,639.65/2,965.26
  6. Step 6: Final answer
    x = 2,262.07

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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.