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Finding the Fourth Proportional to 12,119.04, 18,178.65 and 3,354.66

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Solution

The fourth proportional to 12,119.04, 18,178.65 and 3,354.66 is: 5,032.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119.04 : 18,178.65 = 3,354.66 : x
  2. Step 2: Convert to fraction form
    12,119.04/18,178.65 = 3,354.66/x
  3. Step 3: Cross multiply
    12,119.04x = 18,178.65 × 3,354.66
  4. Step 4: Simplify right side
    12,119.04x = 60,983,190.01
  5. Step 5: Solve for x
    x = 60,983,190.01/12,119.04
  6. Step 6: Final answer
    x = 5,032.01

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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.