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Finding the Fourth Proportional to 18,016.64, 27,034.24 and 13,632.64

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Solution

The fourth proportional to 18,016.64, 27,034.24 and 13,632.64 is: 20,455.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,016.64 : 27,034.24 = 13,632.64 : x
  2. Step 2: Convert to fraction form
    18,016.64/27,034.24 = 13,632.64/x
  3. Step 3: Cross multiply
    18,016.64x = 27,034.24 × 13,632.64
  4. Step 4: Simplify right side
    18,016.64x = 368,548,061.59
  5. Step 5: Solve for x
    x = 368,548,061.59/18,016.64
  6. Step 6: Final answer
    x = 20,455.98

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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.