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Finding the Third Proportional to 2,139,885.38 and 4,354,504.41

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Solution

The third proportional to 2,139,885.38 and 4,354,504.41 is: 8,861,086.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,885.38 : 4,354,504.41 = 4,354,504.41 : x
  2. Step 2: Convert to fraction form
    2,139,885.38/4,354,504.41 = 4,354,504.41/x
  3. Step 3: Cross multiply
    2,139,885.38x = 4,354,504.41 × 4,354,504.41
  4. Step 4: Simplify right side
    2,139,885.38x = 18,961,708,624,050.66
  5. Step 5: Solve for x
    x = 18,961,708,624,050.66/2,139,885.38
  6. Step 6: Final answer
    x = 8,861,086.13

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.