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Finding the Fourth Proportional to 48,817.40, 73,226.10 and 11,881.40

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Solution

The fourth proportional to 48,817.40, 73,226.10 and 11,881.40 is: 17,822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,817.40 : 73,226.10 = 11,881.40 : x
  2. Step 2: Convert to fraction form
    48,817.40/73,226.10 = 11,881.40/x
  3. Step 3: Cross multiply
    48,817.40x = 73,226.10 × 11,881.40
  4. Step 4: Simplify right side
    48,817.40x = 870,028,584.54
  5. Step 5: Solve for x
    x = 870,028,584.54/48,817.40
  6. Step 6: Final answer
    x = 17,822.10

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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.