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Finding the Fourth Proportional to 7,718.96, 11,570.11 and 3,761.48

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Solution

The fourth proportional to 7,718.96, 11,570.11 and 3,761.48 is: 5,638.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.96 : 11,570.11 = 3,761.48 : x
  2. Step 2: Convert to fraction form
    7,718.96/11,570.11 = 3,761.48/x
  3. Step 3: Cross multiply
    7,718.96x = 11,570.11 × 3,761.48
  4. Step 4: Simplify right side
    7,718.96x = 43,520,756.88
  5. Step 5: Solve for x
    x = 43,520,756.88/7,718.96
  6. Step 6: Final answer
    x = 5,638.16

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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.