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Finding the Fourth Proportional to 8,055.42, 12,078.20 and 7,367.88

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Solution

The fourth proportional to 8,055.42, 12,078.20 and 7,367.88 is: 11,047.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,055.42 : 12,078.20 = 7,367.88 : x
  2. Step 2: Convert to fraction form
    8,055.42/12,078.20 = 7,367.88/x
  3. Step 3: Cross multiply
    8,055.42x = 12,078.20 × 7,367.88
  4. Step 4: Simplify right side
    8,055.42x = 88,990,728.22
  5. Step 5: Solve for x
    x = 88,990,728.22/8,055.42
  6. Step 6: Final answer
    x = 11,047.31

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.