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Finding the Fourth Proportional to 18,301.66, 27,459.07 and 7,202.20

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Solution

The fourth proportional to 18,301.66, 27,459.07 and 7,202.20 is: 10,805.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,301.66 : 27,459.07 = 7,202.20 : x
  2. Step 2: Convert to fraction form
    18,301.66/27,459.07 = 7,202.20/x
  3. Step 3: Cross multiply
    18,301.66x = 27,459.07 × 7,202.20
  4. Step 4: Simplify right side
    18,301.66x = 197,765,540.65
  5. Step 5: Solve for x
    x = 197,765,540.65/18,301.66
  6. Step 6: Final answer
    x = 10,805.88

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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.