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Finding the Third Proportional to 1,139,541.75 and 2,431,609.88

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Solution

The third proportional to 1,139,541.75 and 2,431,609.88 is: 5,188,687.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,541.75 : 2,431,609.88 = 2,431,609.88 : x
  2. Step 2: Convert to fraction form
    1,139,541.75/2,431,609.88 = 2,431,609.88/x
  3. Step 3: Cross multiply
    1,139,541.75x = 2,431,609.88 × 2,431,609.88
  4. Step 4: Simplify right side
    1,139,541.75x = 5,912,726,584,197.52
  5. Step 5: Solve for x
    x = 5,912,726,584,197.52/1,139,541.75
  6. Step 6: Final answer
    x = 5,188,687.98

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.