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Finding the Third Proportional to 1,970,780.63 and 4,249,199.25

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Solution

The third proportional to 1,970,780.63 and 4,249,199.25 is: 9,161,696.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970,780.63 : 4,249,199.25 = 4,249,199.25 : x
  2. Step 2: Convert to fraction form
    1,970,780.63/4,249,199.25 = 4,249,199.25/x
  3. Step 3: Cross multiply
    1,970,780.63x = 4,249,199.25 × 4,249,199.25
  4. Step 4: Simplify right side
    1,970,780.63x = 18,055,694,266,200.56
  5. Step 5: Solve for x
    x = 18,055,694,266,200.56/1,970,780.63
  6. Step 6: Final answer
    x = 9,161,696.66

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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.