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Finding the Fourth Proportional to 18,843.94, 26,003.79 and 11,294.47

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Solution

The fourth proportional to 18,843.94, 26,003.79 and 11,294.47 is: 15,585.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,843.94 : 26,003.79 = 11,294.47 : x
  2. Step 2: Convert to fraction form
    18,843.94/26,003.79 = 11,294.47/x
  3. Step 3: Cross multiply
    18,843.94x = 26,003.79 × 11,294.47
  4. Step 4: Simplify right side
    18,843.94x = 293,699,026.04
  5. Step 5: Solve for x
    x = 293,699,026.04/18,843.94
  6. Step 6: Final answer
    x = 15,585.86

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.