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Finding the Fourth Proportional to 14,203.88, 19,601.42 and 8,239.08

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Solution

The fourth proportional to 14,203.88, 19,601.42 and 8,239.08 is: 11,369.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,203.88 : 19,601.42 = 8,239.08 : x
  2. Step 2: Convert to fraction form
    14,203.88/19,601.42 = 8,239.08/x
  3. Step 3: Cross multiply
    14,203.88x = 19,601.42 × 8,239.08
  4. Step 4: Simplify right side
    14,203.88x = 161,497,626.30
  5. Step 5: Solve for x
    x = 161,497,626.30/14,203.88
  6. Step 6: Final answer
    x = 11,369.97

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1.5x scale

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.