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Finding the Fourth Proportional to 5,676.45, 8,522.64 and 2,905.11

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Solution

The fourth proportional to 5,676.45, 8,522.64 and 2,905.11 is: 4,361.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,676.45 : 8,522.64 = 2,905.11 : x
  2. Step 2: Convert to fraction form
    5,676.45/8,522.64 = 2,905.11/x
  3. Step 3: Cross multiply
    5,676.45x = 8,522.64 × 2,905.11
  4. Step 4: Simplify right side
    5,676.45x = 24,759,206.69
  5. Step 5: Solve for x
    x = 24,759,206.69/5,676.45
  6. Step 6: Final answer
    x = 4,361.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.