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Finding the Fourth Proportional to 8,608.26, 12,916.35 and 6,270.58

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Solution

The fourth proportional to 8,608.26, 12,916.35 and 6,270.58 is: 9,408.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.26 : 12,916.35 = 6,270.58 : x
  2. Step 2: Convert to fraction form
    8,608.26/12,916.35 = 6,270.58/x
  3. Step 3: Cross multiply
    8,608.26x = 12,916.35 × 6,270.58
  4. Step 4: Simplify right side
    8,608.26x = 80,993,005.98
  5. Step 5: Solve for x
    x = 80,993,005.98/8,608.26
  6. Step 6: Final answer
    x = 9,408.75

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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.