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Finding the Fourth Proportional to 8,372.67, 12,542.25 and 5,039.10

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Solution

The fourth proportional to 8,372.67, 12,542.25 and 5,039.10 is: 7,548.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372.67 : 12,542.25 = 5,039.10 : x
  2. Step 2: Convert to fraction form
    8,372.67/12,542.25 = 5,039.10/x
  3. Step 3: Cross multiply
    8,372.67x = 12,542.25 × 5,039.10
  4. Step 4: Simplify right side
    8,372.67x = 63,201,651.98
  5. Step 5: Solve for x
    x = 63,201,651.98/8,372.67
  6. Step 6: Final answer
    x = 7,548.57

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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.