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Finding the Third Proportional to 18,814,844 and 39,890,506

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Solution

The third proportional to 18,814,844 and 39,890,506 is: 84,574,311.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,814,844 : 39,890,506 = 39,890,506 : x
  2. Step 2: Convert to fraction form
    18,814,844/39,890,506 = 39,890,506/x
  3. Step 3: Cross multiply
    18,814,844x = 39,890,506 × 39,890,506
  4. Step 4: Simplify right side
    18,814,844x = 1,591,252,468,936,036
  5. Step 5: Solve for x
    x = 1,591,252,468,936,036/18,814,844
  6. Step 6: Final answer
    x = 84,574,311.06

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.