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Finding the Fourth Proportional to 13,260.22, 18,299.55 and 7,292.14

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Solution

The fourth proportional to 13,260.22, 18,299.55 and 7,292.14 is: 10,063.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.22 : 18,299.55 = 7,292.14 : x
  2. Step 2: Convert to fraction form
    13,260.22/18,299.55 = 7,292.14/x
  3. Step 3: Cross multiply
    13,260.22x = 18,299.55 × 7,292.14
  4. Step 4: Simplify right side
    13,260.22x = 133,442,880.54
  5. Step 5: Solve for x
    x = 133,442,880.54/13,260.22
  6. Step 6: Final answer
    x = 10,063.40

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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.