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Finding the Fourth Proportional to 8,279.14, 11,425.20 and 4,553.14

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Solution

The fourth proportional to 8,279.14, 11,425.20 and 4,553.14 is: 6,283.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.14 : 11,425.20 = 4,553.14 : x
  2. Step 2: Convert to fraction form
    8,279.14/11,425.20 = 4,553.14/x
  3. Step 3: Cross multiply
    8,279.14x = 11,425.20 × 4,553.14
  4. Step 4: Simplify right side
    8,279.14x = 52,020,535.13
  5. Step 5: Solve for x
    x = 52,020,535.13/8,279.14
  6. Step 6: Final answer
    x = 6,283.33

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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.