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Finding the Fourth Proportional to 8,321.36, 12,472.05 and 4,804.03

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Solution

The fourth proportional to 8,321.36, 12,472.05 and 4,804.03 is: 7,200.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321.36 : 12,472.05 = 4,804.03 : x
  2. Step 2: Convert to fraction form
    8,321.36/12,472.05 = 4,804.03/x
  3. Step 3: Cross multiply
    8,321.36x = 12,472.05 × 4,804.03
  4. Step 4: Simplify right side
    8,321.36x = 59,916,102.36
  5. Step 5: Solve for x
    x = 59,916,102.36/8,321.36
  6. Step 6: Final answer
    x = 7,200.28

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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.