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Finding the Fourth Proportional to 18,241.19, 25,172.84 and 9,857.69

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Solution

The fourth proportional to 18,241.19, 25,172.84 and 9,857.69 is: 13,603.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,241.19 : 25,172.84 = 9,857.69 : x
  2. Step 2: Convert to fraction form
    18,241.19/25,172.84 = 9,857.69/x
  3. Step 3: Cross multiply
    18,241.19x = 25,172.84 × 9,857.69
  4. Step 4: Simplify right side
    18,241.19x = 248,146,053.14
  5. Step 5: Solve for x
    x = 248,146,053.14/18,241.19
  6. Step 6: Final answer
    x = 13,603.61

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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.