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Finding the Fourth Proportional to 6,463.99, 9,696.48 and 2,081.57

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Solution

The fourth proportional to 6,463.99, 9,696.48 and 2,081.57 is: 3,122.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,463.99 : 9,696.48 = 2,081.57 : x
  2. Step 2: Convert to fraction form
    6,463.99/9,696.48 = 2,081.57/x
  3. Step 3: Cross multiply
    6,463.99x = 9,696.48 × 2,081.57
  4. Step 4: Simplify right side
    6,463.99x = 20,183,901.87
  5. Step 5: Solve for x
    x = 20,183,901.87/6,463.99
  6. Step 6: Final answer
    x = 3,122.52

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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.