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Finding the Fourth Proportional to 8,815.13, 13,223.24 and 2,892.41

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Solution

The fourth proportional to 8,815.13, 13,223.24 and 2,892.41 is: 4,338.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.13 : 13,223.24 = 2,892.41 : x
  2. Step 2: Convert to fraction form
    8,815.13/13,223.24 = 2,892.41/x
  3. Step 3: Cross multiply
    8,815.13x = 13,223.24 × 2,892.41
  4. Step 4: Simplify right side
    8,815.13x = 38,247,017.15
  5. Step 5: Solve for x
    x = 38,247,017.15/8,815.13
  6. Step 6: Final answer
    x = 4,338.79

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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.