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Finding the Fourth Proportional to 32,754.15, 45,195.20 and 18,412.09

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Solution

The fourth proportional to 32,754.15, 45,195.20 and 18,412.09 is: 25,405.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,754.15 : 45,195.20 = 18,412.09 : x
  2. Step 2: Convert to fraction form
    32,754.15/45,195.20 = 18,412.09/x
  3. Step 3: Cross multiply
    32,754.15x = 45,195.20 × 18,412.09
  4. Step 4: Simplify right side
    32,754.15x = 832,137,771.93
  5. Step 5: Solve for x
    x = 832,137,771.93/32,754.15
  6. Step 6: Final answer
    x = 25,405.57

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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.