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Finding the Fourth Proportional to 8,828.85, 12,183.04 and 5,243.54

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Solution

The fourth proportional to 8,828.85, 12,183.04 and 5,243.54 is: 7,235.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,828.85 : 12,183.04 = 5,243.54 : x
  2. Step 2: Convert to fraction form
    8,828.85/12,183.04 = 5,243.54/x
  3. Step 3: Cross multiply
    8,828.85x = 12,183.04 × 5,243.54
  4. Step 4: Simplify right side
    8,828.85x = 63,882,274.91
  5. Step 5: Solve for x
    x = 63,882,274.91/8,828.85
  6. Step 6: Final answer
    x = 7,235.63

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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.