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Finding the Fourth Proportional to 11,399.75, 17,118.53 and 7,044.88

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Solution

The fourth proportional to 11,399.75, 17,118.53 and 7,044.88 is: 10,579.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,399.75 : 17,118.53 = 7,044.88 : x
  2. Step 2: Convert to fraction form
    11,399.75/17,118.53 = 7,044.88/x
  3. Step 3: Cross multiply
    11,399.75x = 17,118.53 × 7,044.88
  4. Step 4: Simplify right side
    11,399.75x = 120,597,989.63
  5. Step 5: Solve for x
    x = 120,597,989.63/11,399.75
  6. Step 6: Final answer
    x = 10,579.01

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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.