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Finding the Third Proportional to 11,619.75 and 18,465.75

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Solution

The third proportional to 11,619.75 and 18,465.75 is: 29,345.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619.75 : 18,465.75 = 18,465.75 : x
  2. Step 2: Convert to fraction form
    11,619.75/18,465.75 = 18,465.75/x
  3. Step 3: Cross multiply
    11,619.75x = 18,465.75 × 18,465.75
  4. Step 4: Simplify right side
    11,619.75x = 340,983,923.06
  5. Step 5: Solve for x
    x = 340,983,923.06/11,619.75
  6. Step 6: Final answer
    x = 29,345.20

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.