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Finding the Third Proportional to 7,220,890 and 15,859,028

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Solution

The third proportional to 7,220,890 and 15,859,028 is: 34,830,716.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220,890 : 15,859,028 = 15,859,028 : x
  2. Step 2: Convert to fraction form
    7,220,890/15,859,028 = 15,859,028/x
  3. Step 3: Cross multiply
    7,220,890x = 15,859,028 × 15,859,028
  4. Step 4: Simplify right side
    7,220,890x = 251,508,769,104,784
  5. Step 5: Solve for x
    x = 251,508,769,104,784/7,220,890
  6. Step 6: Final answer
    x = 34,830,716.03

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.