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Finding the Fourth Proportional to 6,622.67, 9,918.89 and 3,162.35

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Solution

The fourth proportional to 6,622.67, 9,918.89 and 3,162.35 is: 4,736.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.67 : 9,918.89 = 3,162.35 : x
  2. Step 2: Convert to fraction form
    6,622.67/9,918.89 = 3,162.35/x
  3. Step 3: Cross multiply
    6,622.67x = 9,918.89 × 3,162.35
  4. Step 4: Simplify right side
    6,622.67x = 31,366,985.98
  5. Step 5: Solve for x
    x = 31,366,985.98/6,622.67
  6. Step 6: Final answer
    x = 4,736.31

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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.