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Finding the Fourth Proportional to 12,610.66, 18,918.39 and 3,846.82

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Solution

The fourth proportional to 12,610.66, 18,918.39 and 3,846.82 is: 5,770.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610.66 : 18,918.39 = 3,846.82 : x
  2. Step 2: Convert to fraction form
    12,610.66/18,918.39 = 3,846.82/x
  3. Step 3: Cross multiply
    12,610.66x = 18,918.39 × 3,846.82
  4. Step 4: Simplify right side
    12,610.66x = 72,775,641.02
  5. Step 5: Solve for x
    x = 72,775,641.02/12,610.66
  6. Step 6: Final answer
    x = 5,770.96

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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.