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Finding the Fourth Proportional to 12,448.86, 17,179.21 and 6,783.66

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Solution

The fourth proportional to 12,448.86, 17,179.21 and 6,783.66 is: 9,361.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,448.86 : 17,179.21 = 6,783.66 : x
  2. Step 2: Convert to fraction form
    12,448.86/17,179.21 = 6,783.66/x
  3. Step 3: Cross multiply
    12,448.86x = 17,179.21 × 6,783.66
  4. Step 4: Simplify right side
    12,448.86x = 116,537,919.71
  5. Step 5: Solve for x
    x = 116,537,919.71/12,448.86
  6. Step 6: Final answer
    x = 9,361.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.