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Finding the Fourth Proportional to 8,592.74, 12,890.73 and 2,747.78

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Solution

The fourth proportional to 8,592.74, 12,890.73 and 2,747.78 is: 4,122.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,592.74 : 12,890.73 = 2,747.78 : x
  2. Step 2: Convert to fraction form
    8,592.74/12,890.73 = 2,747.78/x
  3. Step 3: Cross multiply
    8,592.74x = 12,890.73 × 2,747.78
  4. Step 4: Simplify right side
    8,592.74x = 35,420,890.08
  5. Step 5: Solve for x
    x = 35,420,890.08/8,592.74
  6. Step 6: Final answer
    x = 4,122.19

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1.5x scale

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.