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Finding the Fourth Proportional to 13,967,882.21, 21,083,027.49 and 13,967,882.21

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Solution

The fourth proportional to 13,967,882.21, 21,083,027.49 and 13,967,882.21 is: 21,083,027.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,967,882.21 : 21,083,027.49 = 13,967,882.21 : x
  2. Step 2: Convert to fraction form
    13,967,882.21/21,083,027.49 = 13,967,882.21/x
  3. Step 3: Cross multiply
    13,967,882.21x = 21,083,027.49 × 13,967,882.21
  4. Step 4: Simplify right side
    13,967,882.21x = 294,485,244,531,778.56
  5. Step 5: Solve for x
    x = 294,485,244,531,778.56/13,967,882.21
  6. Step 6: Final answer
    x = 21,083,027.49

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.