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Finding the Fourth Proportional to 8,031.88, 12,049.88 and 3,350.40

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Solution

The fourth proportional to 8,031.88, 12,049.88 and 3,350.40 is: 5,026.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,031.88 : 12,049.88 = 3,350.40 : x
  2. Step 2: Convert to fraction form
    8,031.88/12,049.88 = 3,350.40/x
  3. Step 3: Cross multiply
    8,031.88x = 12,049.88 × 3,350.40
  4. Step 4: Simplify right side
    8,031.88x = 40,371,917.95
  5. Step 5: Solve for x
    x = 40,371,917.95/8,031.88
  6. Step 6: Final answer
    x = 5,026.46

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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.