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Finding the Fourth Proportional to 10,593.79, 15,890.79 and 3,198.31

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Solution

The fourth proportional to 10,593.79, 15,890.79 and 3,198.31 is: 4,797.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,593.79 : 15,890.79 = 3,198.31 : x
  2. Step 2: Convert to fraction form
    10,593.79/15,890.79 = 3,198.31/x
  3. Step 3: Cross multiply
    10,593.79x = 15,890.79 × 3,198.31
  4. Step 4: Simplify right side
    10,593.79x = 50,823,593.11
  5. Step 5: Solve for x
    x = 50,823,593.11/10,593.79
  6. Step 6: Final answer
    x = 4,797.49

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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.