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Finding the Fourth Proportional to 17,021.32, 25,531.94 and 5,335.44

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Solution

The fourth proportional to 17,021.32, 25,531.94 and 5,335.44 is: 8,003.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,021.32 : 25,531.94 = 5,335.44 : x
  2. Step 2: Convert to fraction form
    17,021.32/25,531.94 = 5,335.44/x
  3. Step 3: Cross multiply
    17,021.32x = 25,531.94 × 5,335.44
  4. Step 4: Simplify right side
    17,021.32x = 136,224,133.95
  5. Step 5: Solve for x
    x = 136,224,133.95/17,021.32
  6. Step 6: Final answer
    x = 8,003.15

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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.