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Finding the Fourth Proportional to 48,669.60, 73,004.46 and 13,609.22

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Solution

The fourth proportional to 48,669.60, 73,004.46 and 13,609.22 is: 20,413.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,669.60 : 73,004.46 = 13,609.22 : x
  2. Step 2: Convert to fraction form
    48,669.60/73,004.46 = 13,609.22/x
  3. Step 3: Cross multiply
    48,669.60x = 73,004.46 × 13,609.22
  4. Step 4: Simplify right side
    48,669.60x = 993,533,757.12
  5. Step 5: Solve for x
    x = 993,533,757.12/48,669.60
  6. Step 6: Final answer
    x = 20,413.85

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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.