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Finding the Third Proportional to 4,086.56 and 6,289.03

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Solution

The third proportional to 4,086.56 and 6,289.03 is: 9,678.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.56 : 6,289.03 = 6,289.03 : x
  2. Step 2: Convert to fraction form
    4,086.56/6,289.03 = 6,289.03/x
  3. Step 3: Cross multiply
    4,086.56x = 6,289.03 × 6,289.03
  4. Step 4: Simplify right side
    4,086.56x = 39,551,914.06
  5. Step 5: Solve for x
    x = 39,551,914.06/4,086.56
  6. Step 6: Final answer
    x = 9,678.53

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.