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Finding the Fourth Proportional to 17,872.03, 26,808.26 and 4,724.28

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Solution

The fourth proportional to 17,872.03, 26,808.26 and 4,724.28 is: 7,086.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,872.03 : 26,808.26 = 4,724.28 : x
  2. Step 2: Convert to fraction form
    17,872.03/26,808.26 = 4,724.28/x
  3. Step 3: Cross multiply
    17,872.03x = 26,808.26 × 4,724.28
  4. Step 4: Simplify right side
    17,872.03x = 126,649,726.55
  5. Step 5: Solve for x
    x = 126,649,726.55/17,872.03
  6. Step 6: Final answer
    x = 7,086.48

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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.