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Finding the Fourth Proportional to 26,480.53, 39,720.76 and 6,759.09

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Solution

The fourth proportional to 26,480.53, 39,720.76 and 6,759.09 is: 10,138.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,480.53 : 39,720.76 = 6,759.09 : x
  2. Step 2: Convert to fraction form
    26,480.53/39,720.76 = 6,759.09/x
  3. Step 3: Cross multiply
    26,480.53x = 39,720.76 × 6,759.09
  4. Step 4: Simplify right side
    26,480.53x = 268,476,200.16
  5. Step 5: Solve for x
    x = 268,476,200.16/26,480.53
  6. Step 6: Final answer
    x = 10,138.63

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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.