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Finding the Third Proportional to 1,286,635.50 and 1,892,517.75

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Solution

The third proportional to 1,286,635.50 and 1,892,517.75 is: 2,783,712.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,635.50 : 1,892,517.75 = 1,892,517.75 : x
  2. Step 2: Convert to fraction form
    1,286,635.50/1,892,517.75 = 1,892,517.75/x
  3. Step 3: Cross multiply
    1,286,635.50x = 1,892,517.75 × 1,892,517.75
  4. Step 4: Simplify right side
    1,286,635.50x = 3,581,623,434,065.06
  5. Step 5: Solve for x
    x = 3,581,623,434,065.06/1,286,635.50
  6. Step 6: Final answer
    x = 2,783,712.59

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.