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Finding the Fourth Proportional to 18,014.88, 27,028.53 and 7,490.55

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Solution

The fourth proportional to 18,014.88, 27,028.53 and 7,490.55 is: 11,238.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,014.88 : 27,028.53 = 7,490.55 : x
  2. Step 2: Convert to fraction form
    18,014.88/27,028.53 = 7,490.55/x
  3. Step 3: Cross multiply
    18,014.88x = 27,028.53 × 7,490.55
  4. Step 4: Simplify right side
    18,014.88x = 202,458,555.39
  5. Step 5: Solve for x
    x = 202,458,555.39/18,014.88
  6. Step 6: Final answer
    x = 11,238.41

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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.