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Finding the Fourth Proportional to 7,186.66, 10,759.92 and 3,887.92

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Solution

The fourth proportional to 7,186.66, 10,759.92 and 3,887.92 is: 5,821.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,186.66 : 10,759.92 = 3,887.92 : x
  2. Step 2: Convert to fraction form
    7,186.66/10,759.92 = 3,887.92/x
  3. Step 3: Cross multiply
    7,186.66x = 10,759.92 × 3,887.92
  4. Step 4: Simplify right side
    7,186.66x = 41,833,708.17
  5. Step 5: Solve for x
    x = 41,833,708.17/7,186.66
  6. Step 6: Final answer
    x = 5,821.02

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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.