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Finding the Fourth Proportional to 18,375.23, 27,568.07 and 9,018.06

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Solution

The fourth proportional to 18,375.23, 27,568.07 and 9,018.06 is: 13,529.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,375.23 : 27,568.07 = 9,018.06 : x
  2. Step 2: Convert to fraction form
    18,375.23/27,568.07 = 9,018.06/x
  3. Step 3: Cross multiply
    18,375.23x = 27,568.07 × 9,018.06
  4. Step 4: Simplify right side
    18,375.23x = 248,610,371.50
  5. Step 5: Solve for x
    x = 248,610,371.50/18,375.23
  6. Step 6: Final answer
    x = 13,529.65

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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.