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Finding the Fourth Proportional to 4,722.99, 6,520.78 and 2,932.37

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Solution

The fourth proportional to 4,722.99, 6,520.78 and 2,932.37 is: 4,048.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,722.99 : 6,520.78 = 2,932.37 : x
  2. Step 2: Convert to fraction form
    4,722.99/6,520.78 = 2,932.37/x
  3. Step 3: Cross multiply
    4,722.99x = 6,520.78 × 2,932.37
  4. Step 4: Simplify right side
    4,722.99x = 19,121,339.65
  5. Step 5: Solve for x
    x = 19,121,339.65/4,722.99
  6. Step 6: Final answer
    x = 4,048.57

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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.