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Finding the Fourth Proportional to 8,919.98, 12,309.92 and 4,941.02

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Solution

The fourth proportional to 8,919.98, 12,309.92 and 4,941.02 is: 6,818.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.98 : 12,309.92 = 4,941.02 : x
  2. Step 2: Convert to fraction form
    8,919.98/12,309.92 = 4,941.02/x
  3. Step 3: Cross multiply
    8,919.98x = 12,309.92 × 4,941.02
  4. Step 4: Simplify right side
    8,919.98x = 60,823,511.72
  5. Step 5: Solve for x
    x = 60,823,511.72/8,919.98
  6. Step 6: Final answer
    x = 6,818.79

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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.