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Finding the Fourth Proportional to 11,175.60, 16,774.20 and 6,801.60

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Solution

The fourth proportional to 11,175.60, 16,774.20 and 6,801.60 is: 10,208.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,175.60 : 16,774.20 = 6,801.60 : x
  2. Step 2: Convert to fraction form
    11,175.60/16,774.20 = 6,801.60/x
  3. Step 3: Cross multiply
    11,175.60x = 16,774.20 × 6,801.60
  4. Step 4: Simplify right side
    11,175.60x = 114,091,398.72
  5. Step 5: Solve for x
    x = 114,091,398.72/11,175.60
  6. Step 6: Final answer
    x = 10,208.97

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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.