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Finding the Fourth Proportional to 26,616.70, 39,923.69 and 7,896.89

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Solution

The fourth proportional to 26,616.70, 39,923.69 and 7,896.89 is: 11,844.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,616.70 : 39,923.69 = 7,896.89 : x
  2. Step 2: Convert to fraction form
    26,616.70/39,923.69 = 7,896.89/x
  3. Step 3: Cross multiply
    26,616.70x = 39,923.69 × 7,896.89
  4. Step 4: Simplify right side
    26,616.70x = 315,273,048.65
  5. Step 5: Solve for x
    x = 315,273,048.65/26,616.70
  6. Step 6: Final answer
    x = 11,844.93

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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.