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Finding the Fourth Proportional to 13,272.75, 18,316.52 and 7,304.54

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Solution

The fourth proportional to 13,272.75, 18,316.52 and 7,304.54 is: 10,080.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.75 : 18,316.52 = 7,304.54 : x
  2. Step 2: Convert to fraction form
    13,272.75/18,316.52 = 7,304.54/x
  3. Step 3: Cross multiply
    13,272.75x = 18,316.52 × 7,304.54
  4. Step 4: Simplify right side
    13,272.75x = 133,793,753.00
  5. Step 5: Solve for x
    x = 133,793,753.00/13,272.75
  6. Step 6: Final answer
    x = 10,080.33

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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.