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Finding the Fourth Proportional to 18,100.66, 24,978.88 and 11,027.09

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Solution

The fourth proportional to 18,100.66, 24,978.88 and 11,027.09 is: 15,217.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,100.66 : 24,978.88 = 11,027.09 : x
  2. Step 2: Convert to fraction form
    18,100.66/24,978.88 = 11,027.09/x
  3. Step 3: Cross multiply
    18,100.66x = 24,978.88 × 11,027.09
  4. Step 4: Simplify right side
    18,100.66x = 275,444,177.83
  5. Step 5: Solve for x
    x = 275,444,177.83/18,100.66
  6. Step 6: Final answer
    x = 15,217.36

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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.