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Finding the Third Proportional to 39,928,464 and 81,745,038

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Solution

The third proportional to 39,928,464 and 81,745,038 is: 167,355,579.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,928,464 : 81,745,038 = 81,745,038 : x
  2. Step 2: Convert to fraction form
    39,928,464/81,745,038 = 81,745,038/x
  3. Step 3: Cross multiply
    39,928,464x = 81,745,038 × 81,745,038
  4. Step 4: Simplify right side
    39,928,464x = 6,682,251,237,621,444
  5. Step 5: Solve for x
    x = 6,682,251,237,621,444/39,928,464
  6. Step 6: Final answer
    x = 167,355,579.66

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.