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Finding the Fourth Proportional to 54,440.70, 81,661.05 and 23,279.10

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Solution

The fourth proportional to 54,440.70, 81,661.05 and 23,279.10 is: 34,918.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,440.70 : 81,661.05 = 23,279.10 : x
  2. Step 2: Convert to fraction form
    54,440.70/81,661.05 = 23,279.10/x
  3. Step 3: Cross multiply
    54,440.70x = 81,661.05 × 23,279.10
  4. Step 4: Simplify right side
    54,440.70x = 1,900,995,749.06
  5. Step 5: Solve for x
    x = 1,900,995,749.06/54,440.70
  6. Step 6: Final answer
    x = 34,918.65

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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.