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Finding the Fourth Proportional to 11,334.88, 17,005.05 and 7,179.58

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Solution

The fourth proportional to 11,334.88, 17,005.05 and 7,179.58 is: 10,771.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,334.88 : 17,005.05 = 7,179.58 : x
  2. Step 2: Convert to fraction form
    11,334.88/17,005.05 = 7,179.58/x
  3. Step 3: Cross multiply
    11,334.88x = 17,005.05 × 7,179.58
  4. Step 4: Simplify right side
    11,334.88x = 122,089,074.37
  5. Step 5: Solve for x
    x = 122,089,074.37/11,334.88
  6. Step 6: Final answer
    x = 10,771.10

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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.