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Finding the Fourth Proportional to 8,611.44, 12,916.77 and 2,372.10

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Solution

The fourth proportional to 8,611.44, 12,916.77 and 2,372.10 is: 3,558.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,611.44 : 12,916.77 = 2,372.10 : x
  2. Step 2: Convert to fraction form
    8,611.44/12,916.77 = 2,372.10/x
  3. Step 3: Cross multiply
    8,611.44x = 12,916.77 × 2,372.10
  4. Step 4: Simplify right side
    8,611.44x = 30,639,870.12
  5. Step 5: Solve for x
    x = 30,639,870.12/8,611.44
  6. Step 6: Final answer
    x = 3,558.04

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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.