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Finding the Third Proportional to 3,762.88 and 8,239.75

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Solution

The third proportional to 3,762.88 and 8,239.75 is: 18,042.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,762.88 : 8,239.75 = 8,239.75 : x
  2. Step 2: Convert to fraction form
    3,762.88/8,239.75 = 8,239.75/x
  3. Step 3: Cross multiply
    3,762.88x = 8,239.75 × 8,239.75
  4. Step 4: Simplify right side
    3,762.88x = 67,893,480.06
  5. Step 5: Solve for x
    x = 67,893,480.06/3,762.88
  6. Step 6: Final answer
    x = 18,042.98

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.