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Finding the Fourth Proportional to 7,518.56, 11,254.20 and 5,164.80

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Solution

The fourth proportional to 7,518.56, 11,254.20 and 5,164.80 is: 7,730.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.56 : 11,254.20 = 5,164.80 : x
  2. Step 2: Convert to fraction form
    7,518.56/11,254.20 = 5,164.80/x
  3. Step 3: Cross multiply
    7,518.56x = 11,254.20 × 5,164.80
  4. Step 4: Simplify right side
    7,518.56x = 58,125,692.16
  5. Step 5: Solve for x
    x = 58,125,692.16/7,518.56
  6. Step 6: Final answer
    x = 7,730.96

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.