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Finding the Fourth Proportional to 19,544.45, 26,993.60 and 13,245.89

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Solution

The fourth proportional to 19,544.45, 26,993.60 and 13,245.89 is: 18,294.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,544.45 : 26,993.60 = 13,245.89 : x
  2. Step 2: Convert to fraction form
    19,544.45/26,993.60 = 13,245.89/x
  3. Step 3: Cross multiply
    19,544.45x = 26,993.60 × 13,245.89
  4. Step 4: Simplify right side
    19,544.45x = 357,554,055.11
  5. Step 5: Solve for x
    x = 357,554,055.11/19,544.45
  6. Step 6: Final answer
    x = 18,294.41

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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.