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Finding the Third Proportional to 855,136 and 1,847,312

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Solution

The third proportional to 855,136 and 1,847,312 is: 3,990,665.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,136 : 1,847,312 = 1,847,312 : x
  2. Step 2: Convert to fraction form
    855,136/1,847,312 = 1,847,312/x
  3. Step 3: Cross multiply
    855,136x = 1,847,312 × 1,847,312
  4. Step 4: Simplify right side
    855,136x = 3,412,561,625,344
  5. Step 5: Solve for x
    x = 3,412,561,625,344/855,136
  6. Step 6: Final answer
    x = 3,990,665.37

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.