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Finding the Fourth Proportional to 48,930.63, 73,395.94 and 11,994.63

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Solution

The fourth proportional to 48,930.63, 73,395.94 and 11,994.63 is: 17,991.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,930.63 : 73,395.94 = 11,994.63 : x
  2. Step 2: Convert to fraction form
    48,930.63/73,395.94 = 11,994.63/x
  3. Step 3: Cross multiply
    48,930.63x = 73,395.94 × 11,994.63
  4. Step 4: Simplify right side
    48,930.63x = 880,357,143.80
  5. Step 5: Solve for x
    x = 880,357,143.80/48,930.63
  6. Step 6: Final answer
    x = 17,991.94

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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.