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Finding the Fourth Proportional to 6,961.77, 9,607.32 and 3,817.89

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Solution

The fourth proportional to 6,961.77, 9,607.32 and 3,817.89 is: 5,268.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,961.77 : 9,607.32 = 3,817.89 : x
  2. Step 2: Convert to fraction form
    6,961.77/9,607.32 = 3,817.89/x
  3. Step 3: Cross multiply
    6,961.77x = 9,607.32 × 3,817.89
  4. Step 4: Simplify right side
    6,961.77x = 36,679,690.95
  5. Step 5: Solve for x
    x = 36,679,690.95/6,961.77
  6. Step 6: Final answer
    x = 5,268.73

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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.