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Finding the Fourth Proportional to 18,856.48, 26,034.96 and 11,786.08

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Solution

The fourth proportional to 18,856.48, 26,034.96 and 11,786.08 is: 16,272.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,856.48 : 26,034.96 = 11,786.08 : x
  2. Step 2: Convert to fraction form
    18,856.48/26,034.96 = 11,786.08/x
  3. Step 3: Cross multiply
    18,856.48x = 26,034.96 × 11,786.08
  4. Step 4: Simplify right side
    18,856.48x = 306,850,121.36
  5. Step 5: Solve for x
    x = 306,850,121.36/18,856.48
  6. Step 6: Final answer
    x = 16,272.93

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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.