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Finding the Fourth Proportional to 53,598.80, 80,405.40 and 18,549.20

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Solution

The fourth proportional to 53,598.80, 80,405.40 and 18,549.20 is: 27,826.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,598.80 : 80,405.40 = 18,549.20 : x
  2. Step 2: Convert to fraction form
    53,598.80/80,405.40 = 18,549.20/x
  3. Step 3: Cross multiply
    53,598.80x = 80,405.40 × 18,549.20
  4. Step 4: Simplify right side
    53,598.80x = 1,491,455,845.68
  5. Step 5: Solve for x
    x = 1,491,455,845.68/53,598.80
  6. Step 6: Final answer
    x = 27,826.29

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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.