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Finding the Fourth Proportional to 62,382.56, 93,578.60 and 20,829.56

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Solution

The fourth proportional to 62,382.56, 93,578.60 and 20,829.56 is: 31,245.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,382.56 : 93,578.60 = 20,829.56 : x
  2. Step 2: Convert to fraction form
    62,382.56/93,578.60 = 20,829.56/x
  3. Step 3: Cross multiply
    62,382.56x = 93,578.60 × 20,829.56
  4. Step 4: Simplify right side
    62,382.56x = 1,949,201,063.42
  5. Step 5: Solve for x
    x = 1,949,201,063.42/62,382.56
  6. Step 6: Final answer
    x = 31,245.93

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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.