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Finding the Fourth Proportional to 3,487.67, 5,220.12 and 2,562.99

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Solution

The fourth proportional to 3,487.67, 5,220.12 and 2,562.99 is: 3,836.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.67 : 5,220.12 = 2,562.99 : x
  2. Step 2: Convert to fraction form
    3,487.67/5,220.12 = 2,562.99/x
  3. Step 3: Cross multiply
    3,487.67x = 5,220.12 × 2,562.99
  4. Step 4: Simplify right side
    3,487.67x = 13,379,115.36
  5. Step 5: Solve for x
    x = 13,379,115.36/3,487.67
  6. Step 6: Final answer
    x = 3,836.12

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1.5x scale

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.