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Finding the Fourth Proportional to 62,431.61, 86,155.50 and 33,751.28

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Solution

The fourth proportional to 62,431.61, 86,155.50 and 33,751.28 is: 46,576.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,431.61 : 86,155.50 = 33,751.28 : x
  2. Step 2: Convert to fraction form
    62,431.61/86,155.50 = 33,751.28/x
  3. Step 3: Cross multiply
    62,431.61x = 86,155.50 × 33,751.28
  4. Step 4: Simplify right side
    62,431.61x = 2,907,858,556.15
  5. Step 5: Solve for x
    x = 2,907,858,556.15/62,431.61
  6. Step 6: Final answer
    x = 46,576.70

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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.