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Finding the Fourth Proportional to 13,083.21, 18,055.31 and 7,495.29

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Solution

The fourth proportional to 13,083.21, 18,055.31 and 7,495.29 is: 10,343.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,083.21 : 18,055.31 = 7,495.29 : x
  2. Step 2: Convert to fraction form
    13,083.21/18,055.31 = 7,495.29/x
  3. Step 3: Cross multiply
    13,083.21x = 18,055.31 × 7,495.29
  4. Step 4: Simplify right side
    13,083.21x = 135,329,747.01
  5. Step 5: Solve for x
    x = 135,329,747.01/13,083.21
  6. Step 6: Final answer
    x = 10,343.77

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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.