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Finding the Fourth Proportional to 36,912, 50,939.28 and 22,008

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Solution

The fourth proportional to 36,912, 50,939.28 and 22,008 is: 30,371.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,912 : 50,939.28 = 22,008 : x
  2. Step 2: Convert to fraction form
    36,912/50,939.28 = 22,008/x
  3. Step 3: Cross multiply
    36,912x = 50,939.28 × 22,008
  4. Step 4: Simplify right side
    36,912x = 1,121,071,674.24
  5. Step 5: Solve for x
    x = 1,121,071,674.24/36,912
  6. Step 6: Final answer
    x = 30,371.47

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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.