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Finding the Fourth Proportional to 18,440.32, 27,644.64 and 6,751.12

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Solution

The fourth proportional to 18,440.32, 27,644.64 and 6,751.12 is: 10,120.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,440.32 : 27,644.64 = 6,751.12 : x
  2. Step 2: Convert to fraction form
    18,440.32/27,644.64 = 6,751.12/x
  3. Step 3: Cross multiply
    18,440.32x = 27,644.64 × 6,751.12
  4. Step 4: Simplify right side
    18,440.32x = 186,632,282.00
  5. Step 5: Solve for x
    x = 186,632,282.00/18,440.32
  6. Step 6: Final answer
    x = 10,120.88

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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.