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Finding the Fourth Proportional to 17,759.36, 26,638.08 and 5,447.36

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Solution

The fourth proportional to 17,759.36, 26,638.08 and 5,447.36 is: 8,170.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,759.36 : 26,638.08 = 5,447.36 : x
  2. Step 2: Convert to fraction form
    17,759.36/26,638.08 = 5,447.36/x
  3. Step 3: Cross multiply
    17,759.36x = 26,638.08 × 5,447.36
  4. Step 4: Simplify right side
    17,759.36x = 145,107,211.47
  5. Step 5: Solve for x
    x = 145,107,211.47/17,759.36
  6. Step 6: Final answer
    x = 8,170.75

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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.