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Finding the Fourth Proportional to 8,481.03, 12,721.39 and 3,482.31

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Solution

The fourth proportional to 8,481.03, 12,721.39 and 3,482.31 is: 5,223.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481.03 : 12,721.39 = 3,482.31 : x
  2. Step 2: Convert to fraction form
    8,481.03/12,721.39 = 3,482.31/x
  3. Step 3: Cross multiply
    8,481.03x = 12,721.39 × 3,482.31
  4. Step 4: Simplify right side
    8,481.03x = 44,299,862.61
  5. Step 5: Solve for x
    x = 44,299,862.61/8,481.03
  6. Step 6: Final answer
    x = 5,223.41

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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.