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Finding the Fourth Proportional to 31,270.44, 46,905.89 and 7,896.88

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Solution

The fourth proportional to 31,270.44, 46,905.89 and 7,896.88 is: 11,845.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,270.44 : 46,905.89 = 7,896.88 : x
  2. Step 2: Convert to fraction form
    31,270.44/46,905.89 = 7,896.88/x
  3. Step 3: Cross multiply
    31,270.44x = 46,905.89 × 7,896.88
  4. Step 4: Simplify right side
    31,270.44x = 370,410,145.14
  5. Step 5: Solve for x
    x = 370,410,145.14/31,270.44
  6. Step 6: Final answer
    x = 11,845.38

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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.