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Finding the Fourth Proportional to 22,393.14, 30,886.83 and 19,403.64

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Solution

The fourth proportional to 22,393.14, 30,886.83 and 19,403.64 is: 26,763.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,393.14 : 30,886.83 = 19,403.64 : x
  2. Step 2: Convert to fraction form
    22,393.14/30,886.83 = 19,403.64/x
  3. Step 3: Cross multiply
    22,393.14x = 30,886.83 × 19,403.64
  4. Step 4: Simplify right side
    22,393.14x = 599,316,930.06
  5. Step 5: Solve for x
    x = 599,316,930.06/22,393.14
  6. Step 6: Final answer
    x = 26,763.42

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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.