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Finding the Fourth Proportional to 33,390.30, 50,092.13 and 12,330.47

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Solution

The fourth proportional to 33,390.30, 50,092.13 and 12,330.47 is: 18,498.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,390.30 : 50,092.13 = 12,330.47 : x
  2. Step 2: Convert to fraction form
    33,390.30/50,092.13 = 12,330.47/x
  3. Step 3: Cross multiply
    33,390.30x = 50,092.13 × 12,330.47
  4. Step 4: Simplify right side
    33,390.30x = 617,659,506.20
  5. Step 5: Solve for x
    x = 617,659,506.20/33,390.30
  6. Step 6: Final answer
    x = 18,498.17

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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.