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Finding the Fourth Proportional to 18,843.72, 26,008.92 and 11,294.52

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Solution

The fourth proportional to 18,843.72, 26,008.92 and 11,294.52 is: 15,589.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,843.72 : 26,008.92 = 11,294.52 : x
  2. Step 2: Convert to fraction form
    18,843.72/26,008.92 = 11,294.52/x
  3. Step 3: Cross multiply
    18,843.72x = 26,008.92 × 11,294.52
  4. Step 4: Simplify right side
    18,843.72x = 293,758,267.12
  5. Step 5: Solve for x
    x = 293,758,267.12/18,843.72
  6. Step 6: Final answer
    x = 15,589.19

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Double scale
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Similar ratio
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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.