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Finding the Fourth Proportional to 48,990.25, 73,485.74 and 12,054.25

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Solution

The fourth proportional to 48,990.25, 73,485.74 and 12,054.25 is: 18,081.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,990.25 : 73,485.74 = 12,054.25 : x
  2. Step 2: Convert to fraction form
    48,990.25/73,485.74 = 12,054.25/x
  3. Step 3: Cross multiply
    48,990.25x = 73,485.74 × 12,054.25
  4. Step 4: Simplify right side
    48,990.25x = 885,815,481.40
  5. Step 5: Solve for x
    x = 885,815,481.40/48,990.25
  6. Step 6: Final answer
    x = 18,081.46

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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.