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Finding the Third Proportional to 1,780,664.63 and 2,758,961.25

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Solution

The third proportional to 1,780,664.63 and 2,758,961.25 is: 4,274,733.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780,664.63 : 2,758,961.25 = 2,758,961.25 : x
  2. Step 2: Convert to fraction form
    1,780,664.63/2,758,961.25 = 2,758,961.25/x
  3. Step 3: Cross multiply
    1,780,664.63x = 2,758,961.25 × 2,758,961.25
  4. Step 4: Simplify right side
    1,780,664.63x = 7,611,867,179,001.56
  5. Step 5: Solve for x
    x = 7,611,867,179,001.56/1,780,664.63
  6. Step 6: Final answer
    x = 4,274,733.76

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.