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Finding the Fourth Proportional to 6,370.98, 8,791.84 and 3,538.38

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Solution

The fourth proportional to 6,370.98, 8,791.84 and 3,538.38 is: 4,882.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,370.98 : 8,791.84 = 3,538.38 : x
  2. Step 2: Convert to fraction form
    6,370.98/8,791.84 = 3,538.38/x
  3. Step 3: Cross multiply
    6,370.98x = 8,791.84 × 3,538.38
  4. Step 4: Simplify right side
    6,370.98x = 31,108,870.82
  5. Step 5: Solve for x
    x = 31,108,870.82/6,370.98
  6. Step 6: Final answer
    x = 4,882.90

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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.