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Finding the Fourth Proportional to 11,349.60, 17,005.20 and 5,493.60

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Solution

The fourth proportional to 11,349.60, 17,005.20 and 5,493.60 is: 8,231.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,349.60 : 17,005.20 = 5,493.60 : x
  2. Step 2: Convert to fraction form
    11,349.60/17,005.20 = 5,493.60/x
  3. Step 3: Cross multiply
    11,349.60x = 17,005.20 × 5,493.60
  4. Step 4: Simplify right side
    11,349.60x = 93,419,766.72
  5. Step 5: Solve for x
    x = 93,419,766.72/11,349.60
  6. Step 6: Final answer
    x = 8,231.11

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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.