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Finding the Fourth Proportional to 2,593.43, 3,890.66 and 744.56

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Solution

The fourth proportional to 2,593.43, 3,890.66 and 744.56 is: 1,116.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,593.43 : 3,890.66 = 744.56 : x
  2. Step 2: Convert to fraction form
    2,593.43/3,890.66 = 744.56/x
  3. Step 3: Cross multiply
    2,593.43x = 3,890.66 × 744.56
  4. Step 4: Simplify right side
    2,593.43x = 2,896,806.63
  5. Step 5: Solve for x
    x = 2,896,806.63/2,593.43
  6. Step 6: Final answer
    x = 1,116.98

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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.