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Finding the Fourth Proportional to 6,434.31, 8,880.30 and 4,076.67

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Solution

The fourth proportional to 6,434.31, 8,880.30 and 4,076.67 is: 5,626.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,434.31 : 8,880.30 = 4,076.67 : x
  2. Step 2: Convert to fraction form
    6,434.31/8,880.30 = 4,076.67/x
  3. Step 3: Cross multiply
    6,434.31x = 8,880.30 × 4,076.67
  4. Step 4: Simplify right side
    6,434.31x = 36,202,052.60
  5. Step 5: Solve for x
    x = 36,202,052.60/6,434.31
  6. Step 6: Final answer
    x = 5,626.41

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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.