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Finding the Fourth Proportional to 19,606.97, 29,393.90 and 8,505.29

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Solution

The fourth proportional to 19,606.97, 29,393.90 and 8,505.29 is: 12,750.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,606.97 : 29,393.90 = 8,505.29 : x
  2. Step 2: Convert to fraction form
    19,606.97/29,393.90 = 8,505.29/x
  3. Step 3: Cross multiply
    19,606.97x = 29,393.90 × 8,505.29
  4. Step 4: Simplify right side
    19,606.97x = 250,003,643.73
  5. Step 5: Solve for x
    x = 250,003,643.73/19,606.97
  6. Step 6: Final answer
    x = 12,750.75

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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.