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Finding the Fourth Proportional to 12,243.38, 16,895.99 and 6,654.38

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Solution

The fourth proportional to 12,243.38, 16,895.99 and 6,654.38 is: 9,183.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243.38 : 16,895.99 = 6,654.38 : x
  2. Step 2: Convert to fraction form
    12,243.38/16,895.99 = 6,654.38/x
  3. Step 3: Cross multiply
    12,243.38x = 16,895.99 × 6,654.38
  4. Step 4: Simplify right side
    12,243.38x = 112,432,270.09
  5. Step 5: Solve for x
    x = 112,432,270.09/12,243.38
  6. Step 6: Final answer
    x = 9,183.11

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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.