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Finding the Fourth Proportional to 8,062.95, 12,099.04 and 3,131.95

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Solution

The fourth proportional to 8,062.95, 12,099.04 and 3,131.95 is: 4,699.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,062.95 : 12,099.04 = 3,131.95 : x
  2. Step 2: Convert to fraction form
    8,062.95/12,099.04 = 3,131.95/x
  3. Step 3: Cross multiply
    8,062.95x = 12,099.04 × 3,131.95
  4. Step 4: Simplify right side
    8,062.95x = 37,893,606.96
  5. Step 5: Solve for x
    x = 37,893,606.96/8,062.95
  6. Step 6: Final answer
    x = 4,699.72

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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.