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Finding the Fourth Proportional to 18,054.91, 27,059.82 and 8,693.20

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Solution

The fourth proportional to 18,054.91, 27,059.82 and 8,693.20 is: 13,028.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,054.91 : 27,059.82 = 8,693.20 : x
  2. Step 2: Convert to fraction form
    18,054.91/27,059.82 = 8,693.20/x
  3. Step 3: Cross multiply
    18,054.91x = 27,059.82 × 8,693.20
  4. Step 4: Simplify right side
    18,054.91x = 235,236,427.22
  5. Step 5: Solve for x
    x = 235,236,427.22/18,054.91
  6. Step 6: Final answer
    x = 13,028.94

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1.5x scale

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.