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Finding the Fourth Proportional to 8,374,942.80, 11,560,390.80 and 5,067,407.52

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Solution

The fourth proportional to 8,374,942.80, 11,560,390.80 and 5,067,407.52 is: 6,994,819.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,374,942.80 : 11,560,390.80 = 5,067,407.52 : x
  2. Step 2: Convert to fraction form
    8,374,942.80/11,560,390.80 = 5,067,407.52/x
  3. Step 3: Cross multiply
    8,374,942.80x = 11,560,390.80 × 5,067,407.52
  4. Step 4: Simplify right side
    8,374,942.80x = 58,581,211,274,058.81
  5. Step 5: Solve for x
    x = 58,581,211,274,058.81/8,374,942.80
  6. Step 6: Final answer
    x = 6,994,819.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.