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Finding the Fourth Proportional to 17,175.23, 25,724.78 and 13,197.20

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Solution

The fourth proportional to 17,175.23, 25,724.78 and 13,197.20 is: 19,766.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,175.23 : 25,724.78 = 13,197.20 : x
  2. Step 2: Convert to fraction form
    17,175.23/25,724.78 = 13,197.20/x
  3. Step 3: Cross multiply
    17,175.23x = 25,724.78 × 13,197.20
  4. Step 4: Simplify right side
    17,175.23x = 339,495,066.62
  5. Step 5: Solve for x
    x = 339,495,066.62/17,175.23
  6. Step 6: Final answer
    x = 19,766.55

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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.