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Finding the Fourth Proportional to 8,693,824.80, 13,040,737.20 and 3,012,160.80

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Solution

The fourth proportional to 8,693,824.80, 13,040,737.20 and 3,012,160.80 is: 4,518,241.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693,824.80 : 13,040,737.20 = 3,012,160.80 : x
  2. Step 2: Convert to fraction form
    8,693,824.80/13,040,737.20 = 3,012,160.80/x
  3. Step 3: Cross multiply
    8,693,824.80x = 13,040,737.20 × 3,012,160.80
  4. Step 4: Simplify right side
    8,693,824.80x = 39,280,797,396,941.76
  5. Step 5: Solve for x
    x = 39,280,797,396,941.76/8,693,824.80
  6. Step 6: Final answer
    x = 4,518,241.20

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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.