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Finding the Fourth Proportional to 26,998.73, 40,497.99 and 7,279.28

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Solution

The fourth proportional to 26,998.73, 40,497.99 and 7,279.28 is: 10,918.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,998.73 : 40,497.99 = 7,279.28 : x
  2. Step 2: Convert to fraction form
    26,998.73/40,497.99 = 7,279.28/x
  3. Step 3: Cross multiply
    26,998.73x = 40,497.99 × 7,279.28
  4. Step 4: Simplify right side
    26,998.73x = 294,796,208.65
  5. Step 5: Solve for x
    x = 294,796,208.65/26,998.73
  6. Step 6: Final answer
    x = 10,918.89

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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.