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Finding the Fourth Proportional to 19,202.76, 28,804.01 and 5,351.76

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Solution

The fourth proportional to 19,202.76, 28,804.01 and 5,351.76 is: 8,027.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,202.76 : 28,804.01 = 5,351.76 : x
  2. Step 2: Convert to fraction form
    19,202.76/28,804.01 = 5,351.76/x
  3. Step 3: Cross multiply
    19,202.76x = 28,804.01 × 5,351.76
  4. Step 4: Simplify right side
    19,202.76x = 154,152,121.80
  5. Step 5: Solve for x
    x = 154,152,121.80/19,202.76
  6. Step 6: Final answer
    x = 8,027.60

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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.