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Finding the Fourth Proportional to 12,250.65, 16,906.28 and 6,945.69

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Solution

The fourth proportional to 12,250.65, 16,906.28 and 6,945.69 is: 9,585.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,250.65 : 16,906.28 = 6,945.69 : x
  2. Step 2: Convert to fraction form
    12,250.65/16,906.28 = 6,945.69/x
  3. Step 3: Cross multiply
    12,250.65x = 16,906.28 × 6,945.69
  4. Step 4: Simplify right side
    12,250.65x = 117,425,745.20
  5. Step 5: Solve for x
    x = 117,425,745.20/12,250.65
  6. Step 6: Final answer
    x = 9,585.27

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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.