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Finding the Third Proportional to 1,982,388.94 and 4,328,776.69

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Solution

The third proportional to 1,982,388.94 and 4,328,776.69 is: 9,452,387.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982,388.94 : 4,328,776.69 = 4,328,776.69 : x
  2. Step 2: Convert to fraction form
    1,982,388.94/4,328,776.69 = 4,328,776.69/x
  3. Step 3: Cross multiply
    1,982,388.94x = 4,328,776.69 × 4,328,776.69
  4. Step 4: Simplify right side
    1,982,388.94x = 18,738,307,610,243.47
  5. Step 5: Solve for x
    x = 18,738,307,610,243.47/1,982,388.94
  6. Step 6: Final answer
    x = 9,452,387.10

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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.