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Finding the Fourth Proportional to 9,993.36, 14,992.01 and 8,361.32

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Solution

The fourth proportional to 9,993.36, 14,992.01 and 8,361.32 is: 12,543.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993.36 : 14,992.01 = 8,361.32 : x
  2. Step 2: Convert to fraction form
    9,993.36/14,992.01 = 8,361.32/x
  3. Step 3: Cross multiply
    9,993.36x = 14,992.01 × 8,361.32
  4. Step 4: Simplify right side
    9,993.36x = 125,352,876.29
  5. Step 5: Solve for x
    x = 125,352,876.29/9,993.36
  6. Step 6: Final answer
    x = 12,543.62

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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.