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Finding the Fourth Proportional to 6,343.76, 9,519.94 and 2,239.76

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Solution

The fourth proportional to 6,343.76, 9,519.94 and 2,239.76 is: 3,361.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,343.76 : 9,519.94 = 2,239.76 : x
  2. Step 2: Convert to fraction form
    6,343.76/9,519.94 = 2,239.76/x
  3. Step 3: Cross multiply
    6,343.76x = 9,519.94 × 2,239.76
  4. Step 4: Simplify right side
    6,343.76x = 21,322,380.81
  5. Step 5: Solve for x
    x = 21,322,380.81/6,343.76
  6. Step 6: Final answer
    x = 3,361.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.