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Finding the Fourth Proportional to 6,919.20, 10,377.20 and 2,300.96

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Solution

The fourth proportional to 6,919.20, 10,377.20 and 2,300.96 is: 3,450.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.20 : 10,377.20 = 2,300.96 : x
  2. Step 2: Convert to fraction form
    6,919.20/10,377.20 = 2,300.96/x
  3. Step 3: Cross multiply
    6,919.20x = 10,377.20 × 2,300.96
  4. Step 4: Simplify right side
    6,919.20x = 23,877,522.11
  5. Step 5: Solve for x
    x = 23,877,522.11/6,919.20
  6. Step 6: Final answer
    x = 3,450.91

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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.