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Finding the Fourth Proportional to 18,062.28, 27,098.76 and 7,674.84

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Solution

The fourth proportional to 18,062.28, 27,098.76 and 7,674.84 is: 11,514.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,062.28 : 27,098.76 = 7,674.84 : x
  2. Step 2: Convert to fraction form
    18,062.28/27,098.76 = 7,674.84/x
  3. Step 3: Cross multiply
    18,062.28x = 27,098.76 × 7,674.84
  4. Step 4: Simplify right side
    18,062.28x = 207,978,647.20
  5. Step 5: Solve for x
    x = 207,978,647.20/18,062.28
  6. Step 6: Final answer
    x = 11,514.53

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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.