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Finding the Fourth Proportional to 8,279.56, 11,420.00 and 5,622.35

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Solution

The fourth proportional to 8,279.56, 11,420.00 and 5,622.35 is: 7,754.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.56 : 11,420.00 = 5,622.35 : x
  2. Step 2: Convert to fraction form
    8,279.56/11,420.00 = 5,622.35/x
  3. Step 3: Cross multiply
    8,279.56x = 11,420.00 × 5,622.35
  4. Step 4: Simplify right side
    8,279.56x = 64,207,251.06
  5. Step 5: Solve for x
    x = 64,207,251.06/8,279.56
  6. Step 6: Final answer
    x = 7,754.92

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.