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Finding the Fourth Proportional to 12,976.02, 17,850.24 and 11,375.46

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Solution

The fourth proportional to 12,976.02, 17,850.24 and 11,375.46 is: 15,648.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,976.02 : 17,850.24 = 11,375.46 : x
  2. Step 2: Convert to fraction form
    12,976.02/17,850.24 = 11,375.46/x
  3. Step 3: Cross multiply
    12,976.02x = 17,850.24 × 11,375.46
  4. Step 4: Simplify right side
    12,976.02x = 203,054,691.11
  5. Step 5: Solve for x
    x = 203,054,691.11/12,976.02
  6. Step 6: Final answer
    x = 15,648.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.