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Finding the Fourth Proportional to 18,167.52, 25,080.66 and 12,230.49

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Solution

The fourth proportional to 18,167.52, 25,080.66 and 12,230.49 is: 16,884.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,167.52 : 25,080.66 = 12,230.49 : x
  2. Step 2: Convert to fraction form
    18,167.52/25,080.66 = 12,230.49/x
  3. Step 3: Cross multiply
    18,167.52x = 25,080.66 × 12,230.49
  4. Step 4: Simplify right side
    18,167.52x = 306,748,761.32
  5. Step 5: Solve for x
    x = 306,748,761.32/18,167.52
  6. Step 6: Final answer
    x = 16,884.46

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1.5x scale

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.