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Finding the Fourth Proportional to 2,236.92, 3,355.74 and 756.29

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Solution

The fourth proportional to 2,236.92, 3,355.74 and 756.29 is: 1,134.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,236.92 : 3,355.74 = 756.29 : x
  2. Step 2: Convert to fraction form
    2,236.92/3,355.74 = 756.29/x
  3. Step 3: Cross multiply
    2,236.92x = 3,355.74 × 756.29
  4. Step 4: Simplify right side
    2,236.92x = 2,537,895.83
  5. Step 5: Solve for x
    x = 2,537,895.83/2,236.92
  6. Step 6: Final answer
    x = 1,134.55

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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.