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Finding the Fourth Proportional to 26,410.80, 39,616.80 and 10,617.42

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Solution

The fourth proportional to 26,410.80, 39,616.80 and 10,617.42 is: 15,926.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,410.80 : 39,616.80 = 10,617.42 : x
  2. Step 2: Convert to fraction form
    26,410.80/39,616.80 = 10,617.42/x
  3. Step 3: Cross multiply
    26,410.80x = 39,616.80 × 10,617.42
  4. Step 4: Simplify right side
    26,410.80x = 420,628,204.66
  5. Step 5: Solve for x
    x = 420,628,204.66/26,410.80
  6. Step 6: Final answer
    x = 15,926.37

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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.