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Finding the Fourth Proportional to 8,019.79, 12,030.64 and 3,342.97

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Solution

The fourth proportional to 8,019.79, 12,030.64 and 3,342.97 is: 5,014.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,019.79 : 12,030.64 = 3,342.97 : x
  2. Step 2: Convert to fraction form
    8,019.79/12,030.64 = 3,342.97/x
  3. Step 3: Cross multiply
    8,019.79x = 12,030.64 × 3,342.97
  4. Step 4: Simplify right side
    8,019.79x = 40,217,991.73
  5. Step 5: Solve for x
    x = 40,217,991.73/8,019.79
  6. Step 6: Final answer
    x = 5,014.85

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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.