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Finding the Fourth Proportional to 39,468.96, 54,467.10 and 21,563.96

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Solution

The fourth proportional to 39,468.96, 54,467.10 and 21,563.96 is: 29,758.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,468.96 : 54,467.10 = 21,563.96 : x
  2. Step 2: Convert to fraction form
    39,468.96/54,467.10 = 21,563.96/x
  3. Step 3: Cross multiply
    39,468.96x = 54,467.10 × 21,563.96
  4. Step 4: Simplify right side
    39,468.96x = 1,174,526,399.76
  5. Step 5: Solve for x
    x = 1,174,526,399.76/39,468.96
  6. Step 6: Final answer
    x = 29,758.23

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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.