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Finding the Fourth Proportional to 13,916.33, 19,203.84 and 7,866.44

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Solution

The fourth proportional to 13,916.33, 19,203.84 and 7,866.44 is: 10,855.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.33 : 19,203.84 = 7,866.44 : x
  2. Step 2: Convert to fraction form
    13,916.33/19,203.84 = 7,866.44/x
  3. Step 3: Cross multiply
    13,916.33x = 19,203.84 × 7,866.44
  4. Step 4: Simplify right side
    13,916.33x = 151,065,855.13
  5. Step 5: Solve for x
    x = 151,065,855.13/13,916.33
  6. Step 6: Final answer
    x = 10,855.29

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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.