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Finding the Fourth Proportional to 17,186.75, 25,763.72 and 7,312.44

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Solution

The fourth proportional to 17,186.75, 25,763.72 and 7,312.44 is: 10,961.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,186.75 : 25,763.72 = 7,312.44 : x
  2. Step 2: Convert to fraction form
    17,186.75/25,763.72 = 7,312.44/x
  3. Step 3: Cross multiply
    17,186.75x = 25,763.72 × 7,312.44
  4. Step 4: Simplify right side
    17,186.75x = 188,395,620.11
  5. Step 5: Solve for x
    x = 188,395,620.11/17,186.75
  6. Step 6: Final answer
    x = 10,961.68

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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.