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Finding the Fourth Proportional to 13,513.44, 18,657.77 and 8,805.93

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Solution

The fourth proportional to 13,513.44, 18,657.77 and 8,805.93 is: 12,158.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.44 : 18,657.77 = 8,805.93 : x
  2. Step 2: Convert to fraction form
    13,513.44/18,657.77 = 8,805.93/x
  3. Step 3: Cross multiply
    13,513.44x = 18,657.77 × 8,805.93
  4. Step 4: Simplify right side
    13,513.44x = 164,299,016.58
  5. Step 5: Solve for x
    x = 164,299,016.58/13,513.44
  6. Step 6: Final answer
    x = 12,158.19

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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.