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Finding the Fourth Proportional to 6,908.76, 10,366.20 and 3,621.08

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Solution

The fourth proportional to 6,908.76, 10,366.20 and 3,621.08 is: 5,433.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,908.76 : 10,366.20 = 3,621.08 : x
  2. Step 2: Convert to fraction form
    6,908.76/10,366.20 = 3,621.08/x
  3. Step 3: Cross multiply
    6,908.76x = 10,366.20 × 3,621.08
  4. Step 4: Simplify right side
    6,908.76x = 37,536,787.67
  5. Step 5: Solve for x
    x = 37,536,787.67/6,908.76
  6. Step 6: Final answer
    x = 5,433.22

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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.