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Finding the Fourth Proportional to 17,920.96, 26,881.56 and 6,226

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Solution

The fourth proportional to 17,920.96, 26,881.56 and 6,226 is: 9,339.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920.96 : 26,881.56 = 6,226 : x
  2. Step 2: Convert to fraction form
    17,920.96/26,881.56 = 6,226/x
  3. Step 3: Cross multiply
    17,920.96x = 26,881.56 × 6,226
  4. Step 4: Simplify right side
    17,920.96x = 167,364,592.56
  5. Step 5: Solve for x
    x = 167,364,592.56/17,920.96
  6. Step 6: Final answer
    x = 9,339.04

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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.