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Finding the Fourth Proportional to 12,833.80, 19,229.10 and 6,245.80

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Solution

The fourth proportional to 12,833.80, 19,229.10 and 6,245.80 is: 9,358.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,833.80 : 19,229.10 = 6,245.80 : x
  2. Step 2: Convert to fraction form
    12,833.80/19,229.10 = 6,245.80/x
  3. Step 3: Cross multiply
    12,833.80x = 19,229.10 × 6,245.80
  4. Step 4: Simplify right side
    12,833.80x = 120,101,112.78
  5. Step 5: Solve for x
    x = 120,101,112.78/12,833.80
  6. Step 6: Final answer
    x = 9,358.19

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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.