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Finding the Third Proportional to 851,787 and 1,876,407

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Solution

The third proportional to 851,787 and 1,876,407 is: 4,133,548.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,787 : 1,876,407 = 1,876,407 : x
  2. Step 2: Convert to fraction form
    851,787/1,876,407 = 1,876,407/x
  3. Step 3: Cross multiply
    851,787x = 1,876,407 × 1,876,407
  4. Step 4: Simplify right side
    851,787x = 3,520,903,229,649
  5. Step 5: Solve for x
    x = 3,520,903,229,649/851,787
  6. Step 6: Final answer
    x = 4,133,548.91

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.