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Finding the Fourth Proportional to 8,039.64, 12,063.30 and 3,107.94

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Solution

The fourth proportional to 8,039.64, 12,063.30 and 3,107.94 is: 4,663.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,039.64 : 12,063.30 = 3,107.94 : x
  2. Step 2: Convert to fraction form
    8,039.64/12,063.30 = 3,107.94/x
  3. Step 3: Cross multiply
    8,039.64x = 12,063.30 × 3,107.94
  4. Step 4: Simplify right side
    8,039.64x = 37,492,012.60
  5. Step 5: Solve for x
    x = 37,492,012.60/8,039.64
  6. Step 6: Final answer
    x = 4,663.39

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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.