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Finding the Fourth Proportional to 8,292.92, 12,438.18 and 2,750.08

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Solution

The fourth proportional to 8,292.92, 12,438.18 and 2,750.08 is: 4,124.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,292.92 : 12,438.18 = 2,750.08 : x
  2. Step 2: Convert to fraction form
    8,292.92/12,438.18 = 2,750.08/x
  3. Step 3: Cross multiply
    8,292.92x = 12,438.18 × 2,750.08
  4. Step 4: Simplify right side
    8,292.92x = 34,205,990.05
  5. Step 5: Solve for x
    x = 34,205,990.05/8,292.92
  6. Step 6: Final answer
    x = 4,124.72

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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.