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Finding the Fourth Proportional to 4,487.47, 6,731.21 and 2,019.41

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Solution

The fourth proportional to 4,487.47, 6,731.21 and 2,019.41 is: 3,029.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,487.47 : 6,731.21 = 2,019.41 : x
  2. Step 2: Convert to fraction form
    4,487.47/6,731.21 = 2,019.41/x
  3. Step 3: Cross multiply
    4,487.47x = 6,731.21 × 2,019.41
  4. Step 4: Simplify right side
    4,487.47x = 13,593,029.03
  5. Step 5: Solve for x
    x = 13,593,029.03/4,487.47
  6. Step 6: Final answer
    x = 3,029.11

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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.