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Finding the Fourth Proportional to 19,458.97, 26,853.42 and 11,284.16

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Solution

The fourth proportional to 19,458.97, 26,853.42 and 11,284.16 is: 15,572.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,458.97 : 26,853.42 = 11,284.16 : x
  2. Step 2: Convert to fraction form
    19,458.97/26,853.42 = 11,284.16/x
  3. Step 3: Cross multiply
    19,458.97x = 26,853.42 × 11,284.16
  4. Step 4: Simplify right side
    19,458.97x = 303,018,195.88
  5. Step 5: Solve for x
    x = 303,018,195.88/19,458.97
  6. Step 6: Final answer
    x = 15,572.16

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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.