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Finding the Third Proportional to 3,548,864.39 and 7,720,511.20

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Solution

The third proportional to 3,548,864.39 and 7,720,511.20 is: 16,795,877.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,548,864.39 : 7,720,511.20 = 7,720,511.20 : x
  2. Step 2: Convert to fraction form
    3,548,864.39/7,720,511.20 = 7,720,511.20/x
  3. Step 3: Cross multiply
    3,548,864.39x = 7,720,511.20 × 7,720,511.20
  4. Step 4: Simplify right side
    3,548,864.39x = 59,606,293,237,578.63
  5. Step 5: Solve for x
    x = 59,606,293,237,578.63/3,548,864.39
  6. Step 6: Final answer
    x = 16,795,877.97

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.