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Finding the Fourth Proportional to 8,240.52, 12,351.36 and 2,973.12

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Solution

The fourth proportional to 8,240.52, 12,351.36 and 2,973.12 is: 4,456.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.52 : 12,351.36 = 2,973.12 : x
  2. Step 2: Convert to fraction form
    8,240.52/12,351.36 = 2,973.12/x
  3. Step 3: Cross multiply
    8,240.52x = 12,351.36 × 2,973.12
  4. Step 4: Simplify right side
    8,240.52x = 36,722,075.44
  5. Step 5: Solve for x
    x = 36,722,075.44/8,240.52
  6. Step 6: Final answer
    x = 4,456.28

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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.