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Finding the Fourth Proportional to 18,667.92, 28,004.72 and 6,353.04

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Solution

The fourth proportional to 18,667.92, 28,004.72 and 6,353.04 is: 9,530.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,667.92 : 28,004.72 = 6,353.04 : x
  2. Step 2: Convert to fraction form
    18,667.92/28,004.72 = 6,353.04/x
  3. Step 3: Cross multiply
    18,667.92x = 28,004.72 × 6,353.04
  4. Step 4: Simplify right side
    18,667.92x = 177,915,106.35
  5. Step 5: Solve for x
    x = 177,915,106.35/18,667.92
  6. Step 6: Final answer
    x = 9,530.53

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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.