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Finding the Fourth Proportional to 60,883.20, 84,013.20 and 34,021.96

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Solution

The fourth proportional to 60,883.20, 84,013.20 and 34,021.96 is: 46,947.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,883.20 : 84,013.20 = 34,021.96 : x
  2. Step 2: Convert to fraction form
    60,883.20/84,013.20 = 34,021.96/x
  3. Step 3: Cross multiply
    60,883.20x = 84,013.20 × 34,021.96
  4. Step 4: Simplify right side
    60,883.20x = 2,858,293,729.87
  5. Step 5: Solve for x
    x = 2,858,293,729.87/60,883.20
  6. Step 6: Final answer
    x = 46,947.17

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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.