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Finding the Fourth Proportional to 18,057.75, 27,092.03 and 7,670.31

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Solution

The fourth proportional to 18,057.75, 27,092.03 and 7,670.31 is: 11,507.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,057.75 : 27,092.03 = 7,670.31 : x
  2. Step 2: Convert to fraction form
    18,057.75/27,092.03 = 7,670.31/x
  3. Step 3: Cross multiply
    18,057.75x = 27,092.03 × 7,670.31
  4. Step 4: Simplify right side
    18,057.75x = 207,804,230.28
  5. Step 5: Solve for x
    x = 207,804,230.28/18,057.75
  6. Step 6: Final answer
    x = 11,507.76

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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.