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Finding the Third Proportional to 1,411,853.75 and 2,120,999.25

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Solution

The third proportional to 1,411,853.75 and 2,120,999.25 is: 3,186,334.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,853.75 : 2,120,999.25 = 2,120,999.25 : x
  2. Step 2: Convert to fraction form
    1,411,853.75/2,120,999.25 = 2,120,999.25/x
  3. Step 3: Cross multiply
    1,411,853.75x = 2,120,999.25 × 2,120,999.25
  4. Step 4: Simplify right side
    1,411,853.75x = 4,498,637,818,500.56
  5. Step 5: Solve for x
    x = 4,498,637,818,500.56/1,411,853.75
  6. Step 6: Final answer
    x = 3,186,334.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.