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Finding the Fourth Proportional to 18,624.56, 27,925.16 and 6,928.16

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Solution

The fourth proportional to 18,624.56, 27,925.16 and 6,928.16 is: 10,387.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,624.56 : 27,925.16 = 6,928.16 : x
  2. Step 2: Convert to fraction form
    18,624.56/27,925.16 = 6,928.16/x
  3. Step 3: Cross multiply
    18,624.56x = 27,925.16 × 6,928.16
  4. Step 4: Simplify right side
    18,624.56x = 193,469,976.51
  5. Step 5: Solve for x
    x = 193,469,976.51/18,624.56
  6. Step 6: Final answer
    x = 10,387.90

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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.