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Finding the Fourth Proportional to 19,967.99, 29,954.91 and 5,926.31

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Solution

The fourth proportional to 19,967.99, 29,954.91 and 5,926.31 is: 8,890.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,967.99 : 29,954.91 = 5,926.31 : x
  2. Step 2: Convert to fraction form
    19,967.99/29,954.91 = 5,926.31/x
  3. Step 3: Cross multiply
    19,967.99x = 29,954.91 × 5,926.31
  4. Step 4: Simplify right side
    19,967.99x = 177,522,235.96
  5. Step 5: Solve for x
    x = 177,522,235.96/19,967.99
  6. Step 6: Final answer
    x = 8,890.34

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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.