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Finding the Fourth Proportional to 58,420.69, 80,620.44 and 31,563.11

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Solution

The fourth proportional to 58,420.69, 80,620.44 and 31,563.11 is: 43,557.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,420.69 : 80,620.44 = 31,563.11 : x
  2. Step 2: Convert to fraction form
    58,420.69/80,620.44 = 31,563.11/x
  3. Step 3: Cross multiply
    58,420.69x = 80,620.44 × 31,563.11
  4. Step 4: Simplify right side
    58,420.69x = 2,544,631,815.97
  5. Step 5: Solve for x
    x = 2,544,631,815.97/58,420.69
  6. Step 6: Final answer
    x = 43,557.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.