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Finding the Third Proportional to 859,455.88 and 1,821,363.25

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Solution

The third proportional to 859,455.88 and 1,821,363.25 is: 3,859,842.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,455.88 : 1,821,363.25 = 1,821,363.25 : x
  2. Step 2: Convert to fraction form
    859,455.88/1,821,363.25 = 1,821,363.25/x
  3. Step 3: Cross multiply
    859,455.88x = 1,821,363.25 × 1,821,363.25
  4. Step 4: Simplify right side
    859,455.88x = 3,317,364,088,450.56
  5. Step 5: Solve for x
    x = 3,317,364,088,450.56/859,455.88
  6. Step 6: Final answer
    x = 3,859,842.24

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.