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Finding the Fourth Proportional to 6,961.63, 9,607.05 and 3,817.88

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Solution

The fourth proportional to 6,961.63, 9,607.05 and 3,817.88 is: 5,268.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,961.63 : 9,607.05 = 3,817.88 : x
  2. Step 2: Convert to fraction form
    6,961.63/9,607.05 = 3,817.88/x
  3. Step 3: Cross multiply
    6,961.63x = 9,607.05 × 3,817.88
  4. Step 4: Simplify right side
    6,961.63x = 36,678,544.96
  5. Step 5: Solve for x
    x = 36,678,544.96/6,961.63
  6. Step 6: Final answer
    x = 5,268.68

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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.