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Finding the Fourth Proportional to 7,911.56, 11,867.58 and 2,068.22

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Solution

The fourth proportional to 7,911.56, 11,867.58 and 2,068.22 is: 3,102.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.56 : 11,867.58 = 2,068.22 : x
  2. Step 2: Convert to fraction form
    7,911.56/11,867.58 = 2,068.22/x
  3. Step 3: Cross multiply
    7,911.56x = 11,867.58 × 2,068.22
  4. Step 4: Simplify right side
    7,911.56x = 24,544,795.98
  5. Step 5: Solve for x
    x = 24,544,795.98/7,911.56
  6. Step 6: Final answer
    x = 3,102.40

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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.