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Finding the Fourth Proportional to 8,369.15, 12,544.97 and 2,820.58

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Solution

The fourth proportional to 8,369.15, 12,544.97 and 2,820.58 is: 4,227.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369.15 : 12,544.97 = 2,820.58 : x
  2. Step 2: Convert to fraction form
    8,369.15/12,544.97 = 2,820.58/x
  3. Step 3: Cross multiply
    8,369.15x = 12,544.97 × 2,820.58
  4. Step 4: Simplify right side
    8,369.15x = 35,384,096.07
  5. Step 5: Solve for x
    x = 35,384,096.07/8,369.15
  6. Step 6: Final answer
    x = 4,227.92

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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.