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Finding the Fourth Proportional to 37,406.42, 51,621.09 and 20,410.70

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Solution

The fourth proportional to 37,406.42, 51,621.09 and 20,410.70 is: 28,166.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,406.42 : 51,621.09 = 20,410.70 : x
  2. Step 2: Convert to fraction form
    37,406.42/51,621.09 = 20,410.70/x
  3. Step 3: Cross multiply
    37,406.42x = 51,621.09 × 20,410.70
  4. Step 4: Simplify right side
    37,406.42x = 1,053,622,323.56
  5. Step 5: Solve for x
    x = 1,053,622,323.56/37,406.42
  6. Step 6: Final answer
    x = 28,166.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.