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Finding the Fourth Proportional to 18,802.13, 25,946.16 and 11,243.98

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Solution

The fourth proportional to 18,802.13, 25,946.16 and 11,243.98 is: 15,516.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802.13 : 25,946.16 = 11,243.98 : x
  2. Step 2: Convert to fraction form
    18,802.13/25,946.16 = 11,243.98/x
  3. Step 3: Cross multiply
    18,802.13x = 25,946.16 × 11,243.98
  4. Step 4: Simplify right side
    18,802.13x = 291,737,974.39
  5. Step 5: Solve for x
    x = 291,737,974.39/18,802.13
  6. Step 6: Final answer
    x = 15,516.22

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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.