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Finding the Third Proportional to 630,890,039.13 and 1,372,871,998.25

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Solution

The third proportional to 630,890,039.13 and 1,372,871,998.25 is: 2,987,489,747.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,890,039.13 : 1,372,871,998.25 = 1,372,871,998.25 : x
  2. Step 2: Convert to fraction form
    630,890,039.13/1,372,871,998.25 = 1,372,871,998.25/x
  3. Step 3: Cross multiply
    630,890,039.13x = 1,372,871,998.25 × 1,372,871,998.25
  4. Step 4: Simplify right side
    630,890,039.13x = 1,884,777,523,578,948,096
  5. Step 5: Solve for x
    x = 1,884,777,523,578,948,096/630,890,039.13
  6. Step 6: Final answer
    x = 2,987,489,747.33

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.