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Finding the Fourth Proportional to 4,786.64, 6,606.08 and 2,797.87

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Solution

The fourth proportional to 4,786.64, 6,606.08 and 2,797.87 is: 3,861.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786.64 : 6,606.08 = 2,797.87 : x
  2. Step 2: Convert to fraction form
    4,786.64/6,606.08 = 2,797.87/x
  3. Step 3: Cross multiply
    4,786.64x = 6,606.08 × 2,797.87
  4. Step 4: Simplify right side
    4,786.64x = 18,482,953.05
  5. Step 5: Solve for x
    x = 18,482,953.05/4,786.64
  6. Step 6: Final answer
    x = 3,861.36

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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.