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Finding the Fourth Proportional to 8,015.02, 12,021.99 and 3,398.02

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Solution

The fourth proportional to 8,015.02, 12,021.99 and 3,398.02 is: 5,096.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,015.02 : 12,021.99 = 3,398.02 : x
  2. Step 2: Convert to fraction form
    8,015.02/12,021.99 = 3,398.02/x
  3. Step 3: Cross multiply
    8,015.02x = 12,021.99 × 3,398.02
  4. Step 4: Simplify right side
    8,015.02x = 40,850,962.46
  5. Step 5: Solve for x
    x = 40,850,962.46/8,015.02
  6. Step 6: Final answer
    x = 5,096.80

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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.