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Finding the Fourth Proportional to 18,706.03, 25,814.47 and 10,208.22

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Solution

The fourth proportional to 18,706.03, 25,814.47 and 10,208.22 is: 14,087.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,706.03 : 25,814.47 = 10,208.22 : x
  2. Step 2: Convert to fraction form
    18,706.03/25,814.47 = 10,208.22/x
  3. Step 3: Cross multiply
    18,706.03x = 25,814.47 × 10,208.22
  4. Step 4: Simplify right side
    18,706.03x = 263,519,827.22
  5. Step 5: Solve for x
    x = 263,519,827.22/18,706.03
  6. Step 6: Final answer
    x = 14,087.43

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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.