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Finding the Fourth Proportional to 6,964.53, 9,611.18 and 3,820.69

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Solution

The fourth proportional to 6,964.53, 9,611.18 and 3,820.69 is: 5,272.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,964.53 : 9,611.18 = 3,820.69 : x
  2. Step 2: Convert to fraction form
    6,964.53/9,611.18 = 3,820.69/x
  3. Step 3: Cross multiply
    6,964.53x = 9,611.18 × 3,820.69
  4. Step 4: Simplify right side
    6,964.53x = 36,721,339.31
  5. Step 5: Solve for x
    x = 36,721,339.31/6,964.53
  6. Step 6: Final answer
    x = 5,272.62

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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.