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Finding the Fourth Proportional to 19,496.88, 29,245.32 and 5,645.88

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Solution

The fourth proportional to 19,496.88, 29,245.32 and 5,645.88 is: 8,468.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,496.88 : 29,245.32 = 5,645.88 : x
  2. Step 2: Convert to fraction form
    19,496.88/29,245.32 = 5,645.88/x
  3. Step 3: Cross multiply
    19,496.88x = 29,245.32 × 5,645.88
  4. Step 4: Simplify right side
    19,496.88x = 165,115,567.28
  5. Step 5: Solve for x
    x = 165,115,567.28/19,496.88
  6. Step 6: Final answer
    x = 8,468.82

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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.