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Finding the Fourth Proportional to 54,714.69, 82,072.04 and 13,161.69

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Solution

The fourth proportional to 54,714.69, 82,072.04 and 13,161.69 is: 19,742.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,714.69 : 82,072.04 = 13,161.69 : x
  2. Step 2: Convert to fraction form
    54,714.69/82,072.04 = 13,161.69/x
  3. Step 3: Cross multiply
    54,714.69x = 82,072.04 × 13,161.69
  4. Step 4: Simplify right side
    54,714.69x = 1,080,206,682.34
  5. Step 5: Solve for x
    x = 1,080,206,682.34/54,714.69
  6. Step 6: Final answer
    x = 19,742.54

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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.