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Finding the Fourth Proportional to 2,500.72, 3,751.36 and 2,169.04

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Solution

The fourth proportional to 2,500.72, 3,751.36 and 2,169.04 is: 3,253.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,500.72 : 3,751.36 = 2,169.04 : x
  2. Step 2: Convert to fraction form
    2,500.72/3,751.36 = 2,169.04/x
  3. Step 3: Cross multiply
    2,500.72x = 3,751.36 × 2,169.04
  4. Step 4: Simplify right side
    2,500.72x = 8,136,849.89
  5. Step 5: Solve for x
    x = 8,136,849.89/2,500.72
  6. Step 6: Final answer
    x = 3,253.80

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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.