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Finding the Fourth Proportional to 26,611.29, 39,911.79 and 8,839.18

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Solution

The fourth proportional to 26,611.29, 39,911.79 and 8,839.18 is: 13,257.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,611.29 : 39,911.79 = 8,839.18 : x
  2. Step 2: Convert to fraction form
    26,611.29/39,911.79 = 8,839.18/x
  3. Step 3: Cross multiply
    26,611.29x = 39,911.79 × 8,839.18
  4. Step 4: Simplify right side
    26,611.29x = 352,787,495.93
  5. Step 5: Solve for x
    x = 352,787,495.93/26,611.29
  6. Step 6: Final answer
    x = 13,257.06

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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.