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Finding the Fourth Proportional to 12,243.68, 16,896.60 and 6,654.68

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Solution

The fourth proportional to 12,243.68, 16,896.60 and 6,654.68 is: 9,183.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243.68 : 16,896.60 = 6,654.68 : x
  2. Step 2: Convert to fraction form
    12,243.68/16,896.60 = 6,654.68/x
  3. Step 3: Cross multiply
    12,243.68x = 16,896.60 × 6,654.68
  4. Step 4: Simplify right side
    12,243.68x = 112,441,466.09
  5. Step 5: Solve for x
    x = 112,441,466.09/12,243.68
  6. Step 6: Final answer
    x = 9,183.63

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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.