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Finding the Fourth Proportional to 17,611.25, 26,403.01 and 8,729.63

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Solution

The fourth proportional to 17,611.25, 26,403.01 and 8,729.63 is: 13,087.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,611.25 : 26,403.01 = 8,729.63 : x
  2. Step 2: Convert to fraction form
    17,611.25/26,403.01 = 8,729.63/x
  3. Step 3: Cross multiply
    17,611.25x = 26,403.01 × 8,729.63
  4. Step 4: Simplify right side
    17,611.25x = 230,488,508.19
  5. Step 5: Solve for x
    x = 230,488,508.19/17,611.25
  6. Step 6: Final answer
    x = 13,087.57

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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.