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Finding the Fourth Proportional to 3,572.76, 5,353.05 and 2,792.46

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Solution

The fourth proportional to 3,572.76, 5,353.05 and 2,792.46 is: 4,183.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.76 : 5,353.05 = 2,792.46 : x
  2. Step 2: Convert to fraction form
    3,572.76/5,353.05 = 2,792.46/x
  3. Step 3: Cross multiply
    3,572.76x = 5,353.05 × 2,792.46
  4. Step 4: Simplify right side
    3,572.76x = 14,948,178.00
  5. Step 5: Solve for x
    x = 14,948,178.00/3,572.76
  6. Step 6: Final answer
    x = 4,183.93

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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.