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Finding the Fourth Proportional to 53,467.20, 80,200.80 and 14,028.30

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Solution

The fourth proportional to 53,467.20, 80,200.80 and 14,028.30 is: 21,042.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,467.20 : 80,200.80 = 14,028.30 : x
  2. Step 2: Convert to fraction form
    53,467.20/80,200.80 = 14,028.30/x
  3. Step 3: Cross multiply
    53,467.20x = 80,200.80 × 14,028.30
  4. Step 4: Simplify right side
    53,467.20x = 1,125,080,882.64
  5. Step 5: Solve for x
    x = 1,125,080,882.64/53,467.20
  6. Step 6: Final answer
    x = 21,042.45

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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.