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Finding the Fourth Proportional to 26,617.30, 39,923.70 and 8,149.30

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Solution

The fourth proportional to 26,617.30, 39,923.70 and 8,149.30 is: 12,223.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,617.30 : 39,923.70 = 8,149.30 : x
  2. Step 2: Convert to fraction form
    26,617.30/39,923.70 = 8,149.30/x
  3. Step 3: Cross multiply
    26,617.30x = 39,923.70 × 8,149.30
  4. Step 4: Simplify right side
    26,617.30x = 325,350,208.41
  5. Step 5: Solve for x
    x = 325,350,208.41/26,617.30
  6. Step 6: Final answer
    x = 12,223.26

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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.