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Finding the Fourth Proportional to 22,185.66, 30,616.05 and 12,114.09

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Solution

The fourth proportional to 22,185.66, 30,616.05 and 12,114.09 is: 16,717.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,185.66 : 30,616.05 = 12,114.09 : x
  2. Step 2: Convert to fraction form
    22,185.66/30,616.05 = 12,114.09/x
  3. Step 3: Cross multiply
    22,185.66x = 30,616.05 × 12,114.09
  4. Step 4: Simplify right side
    22,185.66x = 370,885,585.14
  5. Step 5: Solve for x
    x = 370,885,585.14/22,185.66
  6. Step 6: Final answer
    x = 16,717.36

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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.