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Finding the Fourth Proportional to 7,179.63, 10,764.48 and 3,662.82

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Solution

The fourth proportional to 7,179.63, 10,764.48 and 3,662.82 is: 5,491.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.63 : 10,764.48 = 3,662.82 : x
  2. Step 2: Convert to fraction form
    7,179.63/10,764.48 = 3,662.82/x
  3. Step 3: Cross multiply
    7,179.63x = 10,764.48 × 3,662.82
  4. Step 4: Simplify right side
    7,179.63x = 39,428,352.63
  5. Step 5: Solve for x
    x = 39,428,352.63/7,179.63
  6. Step 6: Final answer
    x = 5,491.70

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1.5x scale

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.