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Finding the Fourth Proportional to 6,471.38, 8,930.50 and 3,676.88

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Solution

The fourth proportional to 6,471.38, 8,930.50 and 3,676.88 is: 5,074.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,471.38 : 8,930.50 = 3,676.88 : x
  2. Step 2: Convert to fraction form
    6,471.38/8,930.50 = 3,676.88/x
  3. Step 3: Cross multiply
    6,471.38x = 8,930.50 × 3,676.88
  4. Step 4: Simplify right side
    6,471.38x = 32,836,376.84
  5. Step 5: Solve for x
    x = 32,836,376.84/6,471.38
  6. Step 6: Final answer
    x = 5,074.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.