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Finding the Fourth Proportional to 19,202.54, 28,803.80 and 5,351.54

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Solution

The fourth proportional to 19,202.54, 28,803.80 and 5,351.54 is: 8,027.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,202.54 : 28,803.80 = 5,351.54 : x
  2. Step 2: Convert to fraction form
    19,202.54/28,803.80 = 5,351.54/x
  3. Step 3: Cross multiply
    19,202.54x = 28,803.80 × 5,351.54
  4. Step 4: Simplify right side
    19,202.54x = 154,144,517.08
  5. Step 5: Solve for x
    x = 154,144,517.08/19,202.54
  6. Step 6: Final answer
    x = 8,027.30

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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.