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Finding the Third Proportional to 20,138,886 and 43,486,716

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Solution

The third proportional to 20,138,886 and 43,486,716 is: 93,902,635.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,138,886 : 43,486,716 = 43,486,716 : x
  2. Step 2: Convert to fraction form
    20,138,886/43,486,716 = 43,486,716/x
  3. Step 3: Cross multiply
    20,138,886x = 43,486,716 × 43,486,716
  4. Step 4: Simplify right side
    20,138,886x = 1,891,094,468,464,656
  5. Step 5: Solve for x
    x = 1,891,094,468,464,656/20,138,886
  6. Step 6: Final answer
    x = 93,902,635.35

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.