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Finding the Fourth Proportional to 54,804.43, 82,207.28 and 19,266.79

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Solution

The fourth proportional to 54,804.43, 82,207.28 and 19,266.79 is: 28,900.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,804.43 : 82,207.28 = 19,266.79 : x
  2. Step 2: Convert to fraction form
    54,804.43/82,207.28 = 19,266.79/x
  3. Step 3: Cross multiply
    54,804.43x = 82,207.28 × 19,266.79
  4. Step 4: Simplify right side
    54,804.43x = 1,583,870,111.62
  5. Step 5: Solve for x
    x = 1,583,870,111.62/54,804.43
  6. Step 6: Final answer
    x = 28,900.41

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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.