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Finding the Fourth Proportional to 18,341.62, 27,512.43 and 5,194.11

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Solution

The fourth proportional to 18,341.62, 27,512.43 and 5,194.11 is: 7,791.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,341.62 : 27,512.43 = 5,194.11 : x
  2. Step 2: Convert to fraction form
    18,341.62/27,512.43 = 5,194.11/x
  3. Step 3: Cross multiply
    18,341.62x = 27,512.43 × 5,194.11
  4. Step 4: Simplify right side
    18,341.62x = 142,902,587.79
  5. Step 5: Solve for x
    x = 142,902,587.79/18,341.62
  6. Step 6: Final answer
    x = 7,791.17

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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.