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Finding the Third Proportional to 1,860,220.05 and 3,986,160.61

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Solution

The third proportional to 1,860,220.05 and 3,986,160.61 is: 8,541,718.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860,220.05 : 3,986,160.61 = 3,986,160.61 : x
  2. Step 2: Convert to fraction form
    1,860,220.05/3,986,160.61 = 3,986,160.61/x
  3. Step 3: Cross multiply
    1,860,220.05x = 3,986,160.61 × 3,986,160.61
  4. Step 4: Simplify right side
    1,860,220.05x = 15,889,476,403,732.87
  5. Step 5: Solve for x
    x = 15,889,476,403,732.87/1,860,220.05
  6. Step 6: Final answer
    x = 8,541,718.69

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.