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Finding the Fourth Proportional to 19,481.32, 26,884.02 and 11,098

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Solution

The fourth proportional to 19,481.32, 26,884.02 and 11,098 is: 15,315.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,481.32 : 26,884.02 = 11,098 : x
  2. Step 2: Convert to fraction form
    19,481.32/26,884.02 = 11,098/x
  3. Step 3: Cross multiply
    19,481.32x = 26,884.02 × 11,098
  4. Step 4: Simplify right side
    19,481.32x = 298,358,853.96
  5. Step 5: Solve for x
    x = 298,358,853.96/19,481.32
  6. Step 6: Final answer
    x = 15,315.13

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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.