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Finding the Fourth Proportional to 12,200.94, 18,308.97 and 4,804.11

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Solution

The fourth proportional to 12,200.94, 18,308.97 and 4,804.11 is: 7,209.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,200.94 : 18,308.97 = 4,804.11 : x
  2. Step 2: Convert to fraction form
    12,200.94/18,308.97 = 4,804.11/x
  3. Step 3: Cross multiply
    12,200.94x = 18,308.97 × 4,804.11
  4. Step 4: Simplify right side
    12,200.94x = 87,958,305.87
  5. Step 5: Solve for x
    x = 87,958,305.87/12,200.94
  6. Step 6: Final answer
    x = 7,209.14

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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.