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Finding the Third Proportional to 4,544,420 and 9,943,987

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Solution

The third proportional to 4,544,420 and 9,943,987 is: 21,759,185.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,544,420 : 9,943,987 = 9,943,987 : x
  2. Step 2: Convert to fraction form
    4,544,420/9,943,987 = 9,943,987/x
  3. Step 3: Cross multiply
    4,544,420x = 9,943,987 × 9,943,987
  4. Step 4: Simplify right side
    4,544,420x = 98,882,877,456,169
  5. Step 5: Solve for x
    x = 98,882,877,456,169/4,544,420
  6. Step 6: Final answer
    x = 21,759,185.43

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.