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Finding the Fourth Proportional to 8,039.97, 12,059.43 and 2,492.88

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Solution

The fourth proportional to 8,039.97, 12,059.43 and 2,492.88 is: 3,739.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,039.97 : 12,059.43 = 2,492.88 : x
  2. Step 2: Convert to fraction form
    8,039.97/12,059.43 = 2,492.88/x
  3. Step 3: Cross multiply
    8,039.97x = 12,059.43 × 2,492.88
  4. Step 4: Simplify right side
    8,039.97x = 30,062,711.86
  5. Step 5: Solve for x
    x = 30,062,711.86/8,039.97
  6. Step 6: Final answer
    x = 3,739.16

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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.