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Finding the Third Proportional to 813,687.38 and 1,772,028.38

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Solution

The third proportional to 813,687.38 and 1,772,028.38 is: 3,859,079.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,687.38 : 1,772,028.38 = 1,772,028.38 : x
  2. Step 2: Convert to fraction form
    813,687.38/1,772,028.38 = 1,772,028.38/x
  3. Step 3: Cross multiply
    813,687.38x = 1,772,028.38 × 1,772,028.38
  4. Step 4: Simplify right side
    813,687.38x = 3,140,084,561,805.14
  5. Step 5: Solve for x
    x = 3,140,084,561,805.14/813,687.38
  6. Step 6: Final answer
    x = 3,859,079.86

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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.