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Finding the Third Proportional to 1,830,601.90 and 3,936,693.66

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Solution

The third proportional to 1,830,601.90 and 3,936,693.66 is: 8,465,825.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,830,601.90 : 3,936,693.66 = 3,936,693.66 : x
  2. Step 2: Convert to fraction form
    1,830,601.90/3,936,693.66 = 3,936,693.66/x
  3. Step 3: Cross multiply
    1,830,601.90x = 3,936,693.66 × 3,936,693.66
  4. Step 4: Simplify right side
    1,830,601.90x = 15,497,556,943,158.99
  5. Step 5: Solve for x
    x = 15,497,556,943,158.99/1,830,601.90
  6. Step 6: Final answer
    x = 8,465,825.89

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.