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Finding the Fourth Proportional to 2,449.85, 3,675.32 and 806.33

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Solution

The fourth proportional to 2,449.85, 3,675.32 and 806.33 is: 1,209.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,449.85 : 3,675.32 = 806.33 : x
  2. Step 2: Convert to fraction form
    2,449.85/3,675.32 = 806.33/x
  3. Step 3: Cross multiply
    2,449.85x = 3,675.32 × 806.33
  4. Step 4: Simplify right side
    2,449.85x = 2,963,520.78
  5. Step 5: Solve for x
    x = 2,963,520.78/2,449.85
  6. Step 6: Final answer
    x = 1,209.67

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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.