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Finding the Third Proportional to 1,221,819.19 and 2,632,996.13

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Solution

The third proportional to 1,221,819.19 and 2,632,996.13 is: 5,674,054.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,819.19 : 2,632,996.13 = 2,632,996.13 : x
  2. Step 2: Convert to fraction form
    1,221,819.19/2,632,996.13 = 2,632,996.13/x
  3. Step 3: Cross multiply
    1,221,819.19x = 2,632,996.13 × 2,632,996.13
  4. Step 4: Simplify right side
    1,221,819.19x = 6,932,668,594,265.02
  5. Step 5: Solve for x
    x = 6,932,668,594,265.02/1,221,819.19
  6. Step 6: Final answer
    x = 5,674,054.45

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.