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Finding the Fourth Proportional to 18,352.40, 27,528.60 and 5,204.60

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Solution

The fourth proportional to 18,352.40, 27,528.60 and 5,204.60 is: 7,806.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,352.40 : 27,528.60 = 5,204.60 : x
  2. Step 2: Convert to fraction form
    18,352.40/27,528.60 = 5,204.60/x
  3. Step 3: Cross multiply
    18,352.40x = 27,528.60 × 5,204.60
  4. Step 4: Simplify right side
    18,352.40x = 143,275,351.56
  5. Step 5: Solve for x
    x = 143,275,351.56/18,352.40
  6. Step 6: Final answer
    x = 7,806.90

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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.