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Finding the Fourth Proportional to 58,422, 80,622.36 and 33,273.84

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Solution

The fourth proportional to 58,422, 80,622.36 and 33,273.84 is: 45,917.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,422 : 80,622.36 = 33,273.84 : x
  2. Step 2: Convert to fraction form
    58,422/80,622.36 = 33,273.84/x
  3. Step 3: Cross multiply
    58,422x = 80,622.36 × 33,273.84
  4. Step 4: Simplify right side
    58,422x = 2,682,615,507.06
  5. Step 5: Solve for x
    x = 2,682,615,507.06/58,422
  6. Step 6: Final answer
    x = 45,917.90

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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.