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Finding the Fourth Proportional to 8,489,568.90, 12,734,353.35 and 2,810,367.30

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Solution

The fourth proportional to 8,489,568.90, 12,734,353.35 and 2,810,367.30 is: 4,215,550.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,489,568.90 : 12,734,353.35 = 2,810,367.30 : x
  2. Step 2: Convert to fraction form
    8,489,568.90/12,734,353.35 = 2,810,367.30/x
  3. Step 3: Cross multiply
    8,489,568.90x = 12,734,353.35 × 2,810,367.30
  4. Step 4: Simplify right side
    8,489,568.90x = 35,788,210,241,485.45
  5. Step 5: Solve for x
    x = 35,788,210,241,485.45/8,489,568.90
  6. Step 6: Final answer
    x = 4,215,550.95

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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.