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Finding the Fourth Proportional to 8,811.52, 13,217.32 and 2,237.70

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Solution

The fourth proportional to 8,811.52, 13,217.32 and 2,237.70 is: 3,356.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.52 : 13,217.32 = 2,237.70 : x
  2. Step 2: Convert to fraction form
    8,811.52/13,217.32 = 2,237.70/x
  3. Step 3: Cross multiply
    8,811.52x = 13,217.32 × 2,237.70
  4. Step 4: Simplify right side
    8,811.52x = 29,576,396.96
  5. Step 5: Solve for x
    x = 29,576,396.96/8,811.52
  6. Step 6: Final answer
    x = 3,356.56

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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.