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Finding the Fourth Proportional to 6,611.07, 9,916.81 and 3,324.29

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Solution

The fourth proportional to 6,611.07, 9,916.81 and 3,324.29 is: 4,986.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611.07 : 9,916.81 = 3,324.29 : x
  2. Step 2: Convert to fraction form
    6,611.07/9,916.81 = 3,324.29/x
  3. Step 3: Cross multiply
    6,611.07x = 9,916.81 × 3,324.29
  4. Step 4: Simplify right side
    6,611.07x = 32,966,368.80
  5. Step 5: Solve for x
    x = 32,966,368.80/6,611.07
  6. Step 6: Final answer
    x = 4,986.54

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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.