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Finding the Fourth Proportional to 59,390.74, 81,960.54 and 33,896.60

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Solution

The fourth proportional to 59,390.74, 81,960.54 and 33,896.60 is: 46,778.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,390.74 : 81,960.54 = 33,896.60 : x
  2. Step 2: Convert to fraction form
    59,390.74/81,960.54 = 33,896.60/x
  3. Step 3: Cross multiply
    59,390.74x = 81,960.54 × 33,896.60
  4. Step 4: Simplify right side
    59,390.74x = 2,778,183,230.36
  5. Step 5: Solve for x
    x = 2,778,183,230.36/59,390.74
  6. Step 6: Final answer
    x = 46,778.06

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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.