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Finding the Fourth Proportional to 19,668.36, 29,502.72 and 5,817.36

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Solution

The fourth proportional to 19,668.36, 29,502.72 and 5,817.36 is: 8,726.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668.36 : 29,502.72 = 5,817.36 : x
  2. Step 2: Convert to fraction form
    19,668.36/29,502.72 = 5,817.36/x
  3. Step 3: Cross multiply
    19,668.36x = 29,502.72 × 5,817.36
  4. Step 4: Simplify right side
    19,668.36x = 171,627,943.22
  5. Step 5: Solve for x
    x = 171,627,943.22/19,668.36
  6. Step 6: Final answer
    x = 8,726.09

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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.