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Finding the Fourth Proportional to 27,228,628.80, 38,215,739.70 and 27,228,628.80

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Solution

The fourth proportional to 27,228,628.80, 38,215,739.70 and 27,228,628.80 is: 38,215,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,228,628.80 : 38,215,739.70 = 27,228,628.80 : x
  2. Step 2: Convert to fraction form
    27,228,628.80/38,215,739.70 = 27,228,628.80/x
  3. Step 3: Cross multiply
    27,228,628.80x = 38,215,739.70 × 27,228,628.80
  4. Step 4: Simplify right side
    27,228,628.80x = 1,040,562,190,608,723.50
  5. Step 5: Solve for x
    x = 1,040,562,190,608,723.50/27,228,628.80
  6. Step 6: Final answer
    x = 38,215,739.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.