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Finding the Fourth Proportional to 6,112.95, 8,423.78 and 4,339.59

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Solution

The fourth proportional to 6,112.95, 8,423.78 and 4,339.59 is: 5,980.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,112.95 : 8,423.78 = 4,339.59 : x
  2. Step 2: Convert to fraction form
    6,112.95/8,423.78 = 4,339.59/x
  3. Step 3: Cross multiply
    6,112.95x = 8,423.78 × 4,339.59
  4. Step 4: Simplify right side
    6,112.95x = 36,555,729.75
  5. Step 5: Solve for x
    x = 36,555,729.75/6,112.95
  6. Step 6: Final answer
    x = 5,980.05

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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.