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Finding the Fourth Proportional to 11,911.60, 17,866.84 and 5,667.04

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Solution

The fourth proportional to 11,911.60, 17,866.84 and 5,667.04 is: 8,500.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.60 : 17,866.84 = 5,667.04 : x
  2. Step 2: Convert to fraction form
    11,911.60/17,866.84 = 5,667.04/x
  3. Step 3: Cross multiply
    11,911.60x = 17,866.84 × 5,667.04
  4. Step 4: Simplify right side
    11,911.60x = 101,252,096.95
  5. Step 5: Solve for x
    x = 101,252,096.95/11,911.60
  6. Step 6: Final answer
    x = 8,500.29

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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.