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Finding the Fourth Proportional to 4,687.62, 6,468.43 and 2,697.79

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Solution

The fourth proportional to 4,687.62, 6,468.43 and 2,697.79 is: 3,722.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.62 : 6,468.43 = 2,697.79 : x
  2. Step 2: Convert to fraction form
    4,687.62/6,468.43 = 2,697.79/x
  3. Step 3: Cross multiply
    4,687.62x = 6,468.43 × 2,697.79
  4. Step 4: Simplify right side
    4,687.62x = 17,450,465.77
  5. Step 5: Solve for x
    x = 17,450,465.77/4,687.62
  6. Step 6: Final answer
    x = 3,722.67

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Why These Related Problems?

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