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Finding the Fourth Proportional to 4,392.63, 6,581.63 and 3,091.37

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Solution

The fourth proportional to 4,392.63, 6,581.63 and 3,091.37 is: 4,631.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,392.63 : 6,581.63 = 3,091.37 : x
  2. Step 2: Convert to fraction form
    4,392.63/6,581.63 = 3,091.37/x
  3. Step 3: Cross multiply
    4,392.63x = 6,581.63 × 3,091.37
  4. Step 4: Simplify right side
    4,392.63x = 20,346,228.35
  5. Step 5: Solve for x
    x = 20,346,228.35/4,392.63
  6. Step 6: Final answer
    x = 4,631.90

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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.