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Finding the Fourth Proportional to 4,983.60, 7,491.60 and 3,532.80

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Solution

The fourth proportional to 4,983.60, 7,491.60 and 3,532.80 is: 5,310.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,983.60 : 7,491.60 = 3,532.80 : x
  2. Step 2: Convert to fraction form
    4,983.60/7,491.60 = 3,532.80/x
  3. Step 3: Cross multiply
    4,983.60x = 7,491.60 × 3,532.80
  4. Step 4: Simplify right side
    4,983.60x = 26,466,324.48
  5. Step 5: Solve for x
    x = 26,466,324.48/4,983.60
  6. Step 6: Final answer
    x = 5,310.68

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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.