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Finding the Third Proportional to 4,048.88 and 6,439.50

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Solution

The third proportional to 4,048.88 and 6,439.50 is: 10,241.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,048.88 : 6,439.50 = 6,439.50 : x
  2. Step 2: Convert to fraction form
    4,048.88/6,439.50 = 6,439.50/x
  3. Step 3: Cross multiply
    4,048.88x = 6,439.50 × 6,439.50
  4. Step 4: Simplify right side
    4,048.88x = 41,467,160.25
  5. Step 5: Solve for x
    x = 41,467,160.25/4,048.88
  6. Step 6: Final answer
    x = 10,241.65

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.