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Finding the Fourth Proportional to 12,333.80, 18,503.40 and 4,936.40

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Solution

The fourth proportional to 12,333.80, 18,503.40 and 4,936.40 is: 7,405.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,333.80 : 18,503.40 = 4,936.40 : x
  2. Step 2: Convert to fraction form
    12,333.80/18,503.40 = 4,936.40/x
  3. Step 3: Cross multiply
    12,333.80x = 18,503.40 × 4,936.40
  4. Step 4: Simplify right side
    12,333.80x = 91,340,183.76
  5. Step 5: Solve for x
    x = 91,340,183.76/12,333.80
  6. Step 6: Final answer
    x = 7,405.68

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1.5x scale

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.