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Finding the Third Proportional to 4,708.13 and 7,072.31

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Solution

The third proportional to 4,708.13 and 7,072.31 is: 10,623.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,708.13 : 7,072.31 = 7,072.31 : x
  2. Step 2: Convert to fraction form
    4,708.13/7,072.31 = 7,072.31/x
  3. Step 3: Cross multiply
    4,708.13x = 7,072.31 × 7,072.31
  4. Step 4: Simplify right side
    4,708.13x = 50,017,604.10
  5. Step 5: Solve for x
    x = 50,017,604.10/4,708.13
  6. Step 6: Final answer
    x = 10,623.68

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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.