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Finding the Fourth Proportional to 33,291.90, 49,936.14 and 12,230.32

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Solution

The fourth proportional to 33,291.90, 49,936.14 and 12,230.32 is: 18,344.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,291.90 : 49,936.14 = 12,230.32 : x
  2. Step 2: Convert to fraction form
    33,291.90/49,936.14 = 12,230.32/x
  3. Step 3: Cross multiply
    33,291.90x = 49,936.14 × 12,230.32
  4. Step 4: Simplify right side
    33,291.90x = 610,734,971.76
  5. Step 5: Solve for x
    x = 610,734,971.76/33,291.90
  6. Step 6: Final answer
    x = 18,344.85

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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.