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Finding the Fourth Proportional to 6,201.98, 8,561.90 and 3,935.63

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Solution

The fourth proportional to 6,201.98, 8,561.90 and 3,935.63 is: 5,433.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,201.98 : 8,561.90 = 3,935.63 : x
  2. Step 2: Convert to fraction form
    6,201.98/8,561.90 = 3,935.63/x
  3. Step 3: Cross multiply
    6,201.98x = 8,561.90 × 3,935.63
  4. Step 4: Simplify right side
    6,201.98x = 33,696,450.82
  5. Step 5: Solve for x
    x = 33,696,450.82/6,201.98
  6. Step 6: Final answer
    x = 5,433.18

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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.