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Finding the Fourth Proportional to 17,197.80, 25,791.37 and 8,307.60

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Solution

The fourth proportional to 17,197.80, 25,791.37 and 8,307.60 is: 12,458.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,197.80 : 25,791.37 = 8,307.60 : x
  2. Step 2: Convert to fraction form
    17,197.80/25,791.37 = 8,307.60/x
  3. Step 3: Cross multiply
    17,197.80x = 25,791.37 × 8,307.60
  4. Step 4: Simplify right side
    17,197.80x = 214,264,543.95
  5. Step 5: Solve for x
    x = 214,264,543.95/17,197.80
  6. Step 6: Final answer
    x = 12,458.84

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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.