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Finding the Third Proportional to 1,986,792.50 and 4,291,199.50

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Solution

The third proportional to 1,986,792.50 and 4,291,199.50 is: 9,268,402.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,792.50 : 4,291,199.50 = 4,291,199.50 : x
  2. Step 2: Convert to fraction form
    1,986,792.50/4,291,199.50 = 4,291,199.50/x
  3. Step 3: Cross multiply
    1,986,792.50x = 4,291,199.50 × 4,291,199.50
  4. Step 4: Simplify right side
    1,986,792.50x = 18,414,393,148,800.25
  5. Step 5: Solve for x
    x = 18,414,393,148,800.25/1,986,792.50
  6. Step 6: Final answer
    x = 9,268,402.79

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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.