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Finding the Third Proportional to 1,640,781.56 and 2,483,811.21

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Solution

The third proportional to 1,640,781.56 and 2,483,811.21 is: 3,759,987.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,781.56 : 2,483,811.21 = 2,483,811.21 : x
  2. Step 2: Convert to fraction form
    1,640,781.56/2,483,811.21 = 2,483,811.21/x
  3. Step 3: Cross multiply
    1,640,781.56x = 2,483,811.21 × 2,483,811.21
  4. Step 4: Simplify right side
    1,640,781.56x = 6,169,318,131,578.81
  5. Step 5: Solve for x
    x = 6,169,318,131,578.81/1,640,781.56
  6. Step 6: Final answer
    x = 3,759,987.48

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.