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Finding the Fourth Proportional to 18,703.20, 27,945.23 and 18,049.14

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Solution

The fourth proportional to 18,703.20, 27,945.23 and 18,049.14 is: 26,967.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,703.20 : 27,945.23 = 18,049.14 : x
  2. Step 2: Convert to fraction form
    18,703.20/27,945.23 = 18,049.14/x
  3. Step 3: Cross multiply
    18,703.20x = 27,945.23 × 18,049.14
  4. Step 4: Simplify right side
    18,703.20x = 504,387,368.60
  5. Step 5: Solve for x
    x = 504,387,368.60/18,703.20
  6. Step 6: Final answer
    x = 26,967.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.