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Finding the Fourth Proportional to 53,858.36, 80,824.44 and 18,798.02

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Solution

The fourth proportional to 53,858.36, 80,824.44 and 18,798.02 is: 28,209.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,858.36 : 80,824.44 = 18,798.02 : x
  2. Step 2: Convert to fraction form
    53,858.36/80,824.44 = 18,798.02/x
  3. Step 3: Cross multiply
    53,858.36x = 80,824.44 × 18,798.02
  4. Step 4: Simplify right side
    53,858.36x = 1,519,339,000.24
  5. Step 5: Solve for x
    x = 1,519,339,000.24/53,858.36
  6. Step 6: Final answer
    x = 28,209.90

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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.