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Finding the Third Proportional to 1,299,452.25 and 1,999,922.63

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Solution

The third proportional to 1,299,452.25 and 1,999,922.63 is: 3,077,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,452.25 : 1,999,922.63 = 1,999,922.63 : x
  2. Step 2: Convert to fraction form
    1,299,452.25/1,999,922.63 = 1,999,922.63/x
  3. Step 3: Cross multiply
    1,299,452.25x = 1,999,922.63 × 1,999,922.63
  4. Step 4: Simplify right side
    1,299,452.25x = 3,999,690,505,986.89
  5. Step 5: Solve for x
    x = 3,999,690,505,986.89/1,299,452.25
  6. Step 6: Final answer
    x = 3,077,981.90

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.