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Finding the Fourth Proportional to 74,426.44, 111,640.71 and 21,837.01

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Solution

The fourth proportional to 74,426.44, 111,640.71 and 21,837.01 is: 32,755.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,426.44 : 111,640.71 = 21,837.01 : x
  2. Step 2: Convert to fraction form
    74,426.44/111,640.71 = 21,837.01/x
  3. Step 3: Cross multiply
    74,426.44x = 111,640.71 × 21,837.01
  4. Step 4: Simplify right side
    74,426.44x = 2,437,899,300.68
  5. Step 5: Solve for x
    x = 2,437,899,300.68/74,426.44
  6. Step 6: Final answer
    x = 32,755.82

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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.