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Finding the Third Proportional to 1,999.63 and 4,648.63

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Solution

The third proportional to 1,999.63 and 4,648.63 is: 10,806.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999.63 : 4,648.63 = 4,648.63 : x
  2. Step 2: Convert to fraction form
    1,999.63/4,648.63 = 4,648.63/x
  3. Step 3: Cross multiply
    1,999.63x = 4,648.63 × 4,648.63
  4. Step 4: Simplify right side
    1,999.63x = 21,609,714.39
  5. Step 5: Solve for x
    x = 21,609,714.39/1,999.63
  6. Step 6: Final answer
    x = 10,806.88

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.