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Finding the Third Proportional to 4,309.31 and 9,051.75

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Solution

The third proportional to 4,309.31 and 9,051.75 is: 19,013.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,309.31 : 9,051.75 = 9,051.75 : x
  2. Step 2: Convert to fraction form
    4,309.31/9,051.75 = 9,051.75/x
  3. Step 3: Cross multiply
    4,309.31x = 9,051.75 × 9,051.75
  4. Step 4: Simplify right side
    4,309.31x = 81,934,178.06
  5. Step 5: Solve for x
    x = 81,934,178.06/4,309.31
  6. Step 6: Final answer
    x = 19,013.28

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.