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Finding the Fourth Proportional to 7,652.76, 11,481.29 and 2,722.90

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Solution

The fourth proportional to 7,652.76, 11,481.29 and 2,722.90 is: 4,085.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,652.76 : 11,481.29 = 2,722.90 : x
  2. Step 2: Convert to fraction form
    7,652.76/11,481.29 = 2,722.90/x
  3. Step 3: Cross multiply
    7,652.76x = 11,481.29 × 2,722.90
  4. Step 4: Simplify right side
    7,652.76x = 31,262,390.93
  5. Step 5: Solve for x
    x = 31,262,390.93/7,652.76
  6. Step 6: Final answer
    x = 4,085.11

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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.