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Finding the Fourth Proportional to 12,662.88, 18,996.62 and 6,341.06

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Solution

The fourth proportional to 12,662.88, 18,996.62 and 6,341.06 is: 9,512.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,662.88 : 18,996.62 = 6,341.06 : x
  2. Step 2: Convert to fraction form
    12,662.88/18,996.62 = 6,341.06/x
  3. Step 3: Cross multiply
    12,662.88x = 18,996.62 × 6,341.06
  4. Step 4: Simplify right side
    12,662.88x = 120,458,580.53
  5. Step 5: Solve for x
    x = 120,458,580.53/12,662.88
  6. Step 6: Final answer
    x = 9,512.73

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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.