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Finding the Fourth Proportional to 19,578.66, 27,018.81 and 10,626.27

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Solution

The fourth proportional to 19,578.66, 27,018.81 and 10,626.27 is: 14,664.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.66 : 27,018.81 = 10,626.27 : x
  2. Step 2: Convert to fraction form
    19,578.66/27,018.81 = 10,626.27/x
  3. Step 3: Cross multiply
    19,578.66x = 27,018.81 × 10,626.27
  4. Step 4: Simplify right side
    19,578.66x = 287,109,170.14
  5. Step 5: Solve for x
    x = 287,109,170.14/19,578.66
  6. Step 6: Final answer
    x = 14,664.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.