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Finding the Fourth Proportional to 11,441.60, 17,143.20 and 5,585.60

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Solution

The fourth proportional to 11,441.60, 17,143.20 and 5,585.60 is: 8,369.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,441.60 : 17,143.20 = 5,585.60 : x
  2. Step 2: Convert to fraction form
    11,441.60/17,143.20 = 5,585.60/x
  3. Step 3: Cross multiply
    11,441.60x = 17,143.20 × 5,585.60
  4. Step 4: Simplify right side
    11,441.60x = 95,755,057.92
  5. Step 5: Solve for x
    x = 95,755,057.92/11,441.60
  6. Step 6: Final answer
    x = 8,369.03

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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.