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Finding the Fourth Proportional to 28,058.49, 42,093.50 and 8,335.29

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Solution

The fourth proportional to 28,058.49, 42,093.50 and 8,335.29 is: 12,504.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,058.49 : 42,093.50 = 8,335.29 : x
  2. Step 2: Convert to fraction form
    28,058.49/42,093.50 = 8,335.29/x
  3. Step 3: Cross multiply
    28,058.49x = 42,093.50 × 8,335.29
  4. Step 4: Simplify right side
    28,058.49x = 350,861,529.62
  5. Step 5: Solve for x
    x = 350,861,529.62/28,058.49
  6. Step 6: Final answer
    x = 12,504.65

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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.