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Finding the Fourth Proportional to 18,573.57, 27,828.00 and 15,473.49

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Solution

The fourth proportional to 18,573.57, 27,828.00 and 15,473.49 is: 23,183.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,573.57 : 27,828.00 = 15,473.49 : x
  2. Step 2: Convert to fraction form
    18,573.57/27,828.00 = 15,473.49/x
  3. Step 3: Cross multiply
    18,573.57x = 27,828.00 × 15,473.49
  4. Step 4: Simplify right side
    18,573.57x = 430,596,202.35
  5. Step 5: Solve for x
    x = 430,596,202.35/18,573.57
  6. Step 6: Final answer
    x = 23,183.28

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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.