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Finding the Fourth Proportional to 1,183.61, 1,766.86 and 1,037.81

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Solution

The fourth proportional to 1,183.61, 1,766.86 and 1,037.81 is: 1,549.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.61 : 1,766.86 = 1,037.81 : x
  2. Step 2: Convert to fraction form
    1,183.61/1,766.86 = 1,037.81/x
  3. Step 3: Cross multiply
    1,183.61x = 1,766.86 × 1,037.81
  4. Step 4: Simplify right side
    1,183.61x = 1,833,672.64
  5. Step 5: Solve for x
    x = 1,833,672.64/1,183.61
  6. Step 6: Final answer
    x = 1,549.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.