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Finding the Fourth Proportional to 19,169.01, 28,744.42 and 6,687.52

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Solution

The fourth proportional to 19,169.01, 28,744.42 and 6,687.52 is: 10,028.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,169.01 : 28,744.42 = 6,687.52 : x
  2. Step 2: Convert to fraction form
    19,169.01/28,744.42 = 6,687.52/x
  3. Step 3: Cross multiply
    19,169.01x = 28,744.42 × 6,687.52
  4. Step 4: Simplify right side
    19,169.01x = 192,228,883.64
  5. Step 5: Solve for x
    x = 192,228,883.64/19,169.01
  6. Step 6: Final answer
    x = 10,028.11

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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.