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Finding the Fourth Proportional to 43,991.82, 66,014.46 and 19,038.42

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Solution

The fourth proportional to 43,991.82, 66,014.46 and 19,038.42 is: 28,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,991.82 : 66,014.46 = 19,038.42 : x
  2. Step 2: Convert to fraction form
    43,991.82/66,014.46 = 19,038.42/x
  3. Step 3: Cross multiply
    43,991.82x = 66,014.46 × 19,038.42
  4. Step 4: Simplify right side
    43,991.82x = 1,256,811,015.55
  5. Step 5: Solve for x
    x = 1,256,811,015.55/43,991.82
  6. Step 6: Final answer
    x = 28,569.20

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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.