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Finding the Fourth Proportional to 8,616.15, 12,922.50 and 2,374.56

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Solution

The fourth proportional to 8,616.15, 12,922.50 and 2,374.56 is: 3,561.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616.15 : 12,922.50 = 2,374.56 : x
  2. Step 2: Convert to fraction form
    8,616.15/12,922.50 = 2,374.56/x
  3. Step 3: Cross multiply
    8,616.15x = 12,922.50 × 2,374.56
  4. Step 4: Simplify right side
    8,616.15x = 30,685,251.60
  5. Step 5: Solve for x
    x = 30,685,251.60/8,616.15
  6. Step 6: Final answer
    x = 3,561.36

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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.