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Finding the Fourth Proportional to 2,183.77, 3,275.30 and 722.73

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Solution

The fourth proportional to 2,183.77, 3,275.30 and 722.73 is: 1,083.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.77 : 3,275.30 = 722.73 : x
  2. Step 2: Convert to fraction form
    2,183.77/3,275.30 = 722.73/x
  3. Step 3: Cross multiply
    2,183.77x = 3,275.30 × 722.73
  4. Step 4: Simplify right side
    2,183.77x = 2,367,159.38
  5. Step 5: Solve for x
    x = 2,367,159.38/2,183.77
  6. Step 6: Final answer
    x = 1,083.98

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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.