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Finding the Fourth Proportional to 8,857,609.20, 13,286,413.80 and 2,873,977.20

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Solution

The fourth proportional to 8,857,609.20, 13,286,413.80 and 2,873,977.20 is: 4,310,965.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,857,609.20 : 13,286,413.80 = 2,873,977.20 : x
  2. Step 2: Convert to fraction form
    8,857,609.20/13,286,413.80 = 2,873,977.20/x
  3. Step 3: Cross multiply
    8,857,609.20x = 13,286,413.80 × 2,873,977.20
  4. Step 4: Simplify right side
    8,857,609.20x = 38,184,850,330,965.37
  5. Step 5: Solve for x
    x = 38,184,850,330,965.37/8,857,609.20
  6. Step 6: Final answer
    x = 4,310,965.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.