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Finding the Fourth Proportional to 5,720.40, 8,581.62 and 2,024.78

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Solution

The fourth proportional to 5,720.40, 8,581.62 and 2,024.78 is: 3,037.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.40 : 8,581.62 = 2,024.78 : x
  2. Step 2: Convert to fraction form
    5,720.40/8,581.62 = 2,024.78/x
  3. Step 3: Cross multiply
    5,720.40x = 8,581.62 × 2,024.78
  4. Step 4: Simplify right side
    5,720.40x = 17,375,892.54
  5. Step 5: Solve for x
    x = 17,375,892.54/5,720.40
  6. Step 6: Final answer
    x = 3,037.53

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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.