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Finding the Fourth Proportional to 19,797.36, 27,291.48 and 15,073.44

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Solution

The fourth proportional to 19,797.36, 27,291.48 and 15,073.44 is: 20,779.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,797.36 : 27,291.48 = 15,073.44 : x
  2. Step 2: Convert to fraction form
    19,797.36/27,291.48 = 15,073.44/x
  3. Step 3: Cross multiply
    19,797.36x = 27,291.48 × 15,073.44
  4. Step 4: Simplify right side
    19,797.36x = 411,376,486.29
  5. Step 5: Solve for x
    x = 411,376,486.29/19,797.36
  6. Step 6: Final answer
    x = 20,779.36

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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.