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Finding the Fourth Proportional to 69,397.83, 104,129.01 and 22,020.39

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Solution

The fourth proportional to 69,397.83, 104,129.01 and 22,020.39 is: 33,040.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,397.83 : 104,129.01 = 22,020.39 : x
  2. Step 2: Convert to fraction form
    69,397.83/104,129.01 = 22,020.39/x
  3. Step 3: Cross multiply
    69,397.83x = 104,129.01 × 22,020.39
  4. Step 4: Simplify right side
    69,397.83x = 2,292,961,410.51
  5. Step 5: Solve for x
    x = 2,292,961,410.51/69,397.83
  6. Step 6: Final answer
    x = 33,040.82

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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.