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Finding the Fourth Proportional to 11,750.79, 17,627.25 and 5,175.42

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Solution

The fourth proportional to 11,750.79, 17,627.25 and 5,175.42 is: 7,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,750.79 : 17,627.25 = 5,175.42 : x
  2. Step 2: Convert to fraction form
    11,750.79/17,627.25 = 5,175.42/x
  3. Step 3: Cross multiply
    11,750.79x = 17,627.25 × 5,175.42
  4. Step 4: Simplify right side
    11,750.79x = 91,228,422.20
  5. Step 5: Solve for x
    x = 91,228,422.20/11,750.79
  6. Step 6: Final answer
    x = 7,763.60

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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.