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Finding the Fourth Proportional to 12,081.86, 18,124.48 and 3,762.48

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Solution

The fourth proportional to 12,081.86, 18,124.48 and 3,762.48 is: 5,644.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,081.86 : 18,124.48 = 3,762.48 : x
  2. Step 2: Convert to fraction form
    12,081.86/18,124.48 = 3,762.48/x
  3. Step 3: Cross multiply
    12,081.86x = 18,124.48 × 3,762.48
  4. Step 4: Simplify right side
    12,081.86x = 68,192,993.51
  5. Step 5: Solve for x
    x = 68,192,993.51/12,081.86
  6. Step 6: Final answer
    x = 5,644.25

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.