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Finding the Fourth Proportional to 13,661,957.60, 20,492,936.40 and 3,564,578.60

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Solution

The fourth proportional to 13,661,957.60, 20,492,936.40 and 3,564,578.60 is: 5,346,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,661,957.60 : 20,492,936.40 = 3,564,578.60 : x
  2. Step 2: Convert to fraction form
    13,661,957.60/20,492,936.40 = 3,564,578.60/x
  3. Step 3: Cross multiply
    13,661,957.60x = 20,492,936.40 × 3,564,578.60
  4. Step 4: Simplify right side
    13,661,957.60x = 73,048,682,542,601.03
  5. Step 5: Solve for x
    x = 73,048,682,542,601.03/13,661,957.60
  6. Step 6: Final answer
    x = 5,346,867.90

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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.