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Finding the Fourth Proportional to 19,173.65, 26,451.09 and 11,212.36

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Solution

The fourth proportional to 19,173.65, 26,451.09 and 11,212.36 is: 15,468.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,173.65 : 26,451.09 = 11,212.36 : x
  2. Step 2: Convert to fraction form
    19,173.65/26,451.09 = 11,212.36/x
  3. Step 3: Cross multiply
    19,173.65x = 26,451.09 × 11,212.36
  4. Step 4: Simplify right side
    19,173.65x = 296,579,077.34
  5. Step 5: Solve for x
    x = 296,579,077.34/19,173.65
  6. Step 6: Final answer
    x = 15,468.06

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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.