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Finding the Fourth Proportional to 4,932.63, 7,400.24 and 2,159.85

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Solution

The fourth proportional to 4,932.63, 7,400.24 and 2,159.85 is: 3,240.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,932.63 : 7,400.24 = 2,159.85 : x
  2. Step 2: Convert to fraction form
    4,932.63/7,400.24 = 2,159.85/x
  3. Step 3: Cross multiply
    4,932.63x = 7,400.24 × 2,159.85
  4. Step 4: Simplify right side
    4,932.63x = 15,983,408.36
  5. Step 5: Solve for x
    x = 15,983,408.36/4,932.63
  6. Step 6: Final answer
    x = 3,240.34

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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.