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Finding the Fourth Proportional to 54,806.43, 82,203.21 and 15,366.72

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Solution

The fourth proportional to 54,806.43, 82,203.21 and 15,366.72 is: 23,048.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,806.43 : 82,203.21 = 15,366.72 : x
  2. Step 2: Convert to fraction form
    54,806.43/82,203.21 = 15,366.72/x
  3. Step 3: Cross multiply
    54,806.43x = 82,203.21 × 15,366.72
  4. Step 4: Simplify right side
    54,806.43x = 1,263,193,711.17
  5. Step 5: Solve for x
    x = 1,263,193,711.17/54,806.43
  6. Step 6: Final answer
    x = 23,048.28

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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.