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Finding the Fourth Proportional to 44,676.75, 66,995.44 and 20,991.03

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Solution

The fourth proportional to 44,676.75, 66,995.44 and 20,991.03 is: 31,477.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,676.75 : 66,995.44 = 20,991.03 : x
  2. Step 2: Convert to fraction form
    44,676.75/66,995.44 = 20,991.03/x
  3. Step 3: Cross multiply
    44,676.75x = 66,995.44 × 20,991.03
  4. Step 4: Simplify right side
    44,676.75x = 1,406,303,364.04
  5. Step 5: Solve for x
    x = 1,406,303,364.04/44,676.75
  6. Step 6: Final answer
    x = 31,477.30

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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.