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Finding the Third Proportional to 1,425,157.03 and 2,139,611.20

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Solution

The third proportional to 1,425,157.03 and 2,139,611.20 is: 3,212,232.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,157.03 : 2,139,611.20 = 2,139,611.20 : x
  2. Step 2: Convert to fraction form
    1,425,157.03/2,139,611.20 = 2,139,611.20/x
  3. Step 3: Cross multiply
    1,425,157.03x = 2,139,611.20 × 2,139,611.20
  4. Step 4: Simplify right side
    1,425,157.03x = 4,577,936,100,538.01
  5. Step 5: Solve for x
    x = 4,577,936,100,538.01/1,425,157.03
  6. Step 6: Final answer
    x = 3,212,232.76

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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.