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Finding the Third Proportional to 1,718,894.25 and 3,642,690.38

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Solution

The third proportional to 1,718,894.25 and 3,642,690.38 is: 7,719,609.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718,894.25 : 3,642,690.38 = 3,642,690.38 : x
  2. Step 2: Convert to fraction form
    1,718,894.25/3,642,690.38 = 3,642,690.38/x
  3. Step 3: Cross multiply
    1,718,894.25x = 3,642,690.38 × 3,642,690.38
  4. Step 4: Simplify right side
    1,718,894.25x = 13,269,193,168,117.64
  5. Step 5: Solve for x
    x = 13,269,193,168,117.64/1,718,894.25
  6. Step 6: Final answer
    x = 7,719,609.96

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.