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Finding the Fourth Proportional to 3,242.57, 4,867.22 and 2,874.72

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Solution

The fourth proportional to 3,242.57, 4,867.22 and 2,874.72 is: 4,315.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,242.57 : 4,867.22 = 2,874.72 : x
  2. Step 2: Convert to fraction form
    3,242.57/4,867.22 = 2,874.72/x
  3. Step 3: Cross multiply
    3,242.57x = 4,867.22 × 2,874.72
  4. Step 4: Simplify right side
    3,242.57x = 13,991,901.87
  5. Step 5: Solve for x
    x = 13,991,901.87/3,242.57
  6. Step 6: Final answer
    x = 4,315.07

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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.