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Finding the Fourth Proportional to 8,361.51, 12,542.94 and 3,167.25

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Solution

The fourth proportional to 8,361.51, 12,542.94 and 3,167.25 is: 4,751.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,361.51 : 12,542.94 = 3,167.25 : x
  2. Step 2: Convert to fraction form
    8,361.51/12,542.94 = 3,167.25/x
  3. Step 3: Cross multiply
    8,361.51x = 12,542.94 × 3,167.25
  4. Step 4: Simplify right side
    8,361.51x = 39,726,626.72
  5. Step 5: Solve for x
    x = 39,726,626.72/8,361.51
  6. Step 6: Final answer
    x = 4,751.13

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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.