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Finding the Fourth Proportional to 6,469.88, 8,928.43 and 3,675.38

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Solution

The fourth proportional to 6,469.88, 8,928.43 and 3,675.38 is: 5,072.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,469.88 : 8,928.43 = 3,675.38 : x
  2. Step 2: Convert to fraction form
    6,469.88/8,928.43 = 3,675.38/x
  3. Step 3: Cross multiply
    6,469.88x = 8,928.43 × 3,675.38
  4. Step 4: Simplify right side
    6,469.88x = 32,815,319.22
  5. Step 5: Solve for x
    x = 32,815,319.22/6,469.88
  6. Step 6: Final answer
    x = 5,072.02

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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.