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Finding the Fourth Proportional to 28,334,604.20, 39,744,028.60 and 28,334,604.20

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Solution

The fourth proportional to 28,334,604.20, 39,744,028.60 and 28,334,604.20 is: 39,744,028.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,334,604.20 : 39,744,028.60 = 28,334,604.20 : x
  2. Step 2: Convert to fraction form
    28,334,604.20/39,744,028.60 = 28,334,604.20/x
  3. Step 3: Cross multiply
    28,334,604.20x = 39,744,028.60 × 28,334,604.20
  4. Step 4: Simplify right side
    28,334,604.20x = 1,126,131,319,694,480.25
  5. Step 5: Solve for x
    x = 1,126,131,319,694,480.25/28,334,604.20
  6. Step 6: Final answer
    x = 39,744,028.60

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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.