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Finding the Fourth Proportional to 14,058.40, 19,404 and 8,093.20

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Solution

The fourth proportional to 14,058.40, 19,404 and 8,093.20 is: 11,170.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,058.40 : 19,404 = 8,093.20 : x
  2. Step 2: Convert to fraction form
    14,058.40/19,404 = 8,093.20/x
  3. Step 3: Cross multiply
    14,058.40x = 19,404 × 8,093.20
  4. Step 4: Simplify right side
    14,058.40x = 157,040,452.80
  5. Step 5: Solve for x
    x = 157,040,452.80/14,058.40
  6. Step 6: Final answer
    x = 11,170.58

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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.