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Finding the Fourth Proportional to 13,257.93, 18,294.85 and 7,806.13

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Solution

The fourth proportional to 13,257.93, 18,294.85 and 7,806.13 is: 10,771.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.93 : 18,294.85 = 7,806.13 : x
  2. Step 2: Convert to fraction form
    13,257.93/18,294.85 = 7,806.13/x
  3. Step 3: Cross multiply
    13,257.93x = 18,294.85 × 7,806.13
  4. Step 4: Simplify right side
    13,257.93x = 142,811,977.43
  5. Step 5: Solve for x
    x = 142,811,977.43/13,257.93
  6. Step 6: Final answer
    x = 10,771.82

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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.