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Finding the Fourth Proportional to 10,728.90, 16,093.60 and 7,553.36

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Solution

The fourth proportional to 10,728.90, 16,093.60 and 7,553.36 is: 11,330.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,728.90 : 16,093.60 = 7,553.36 : x
  2. Step 2: Convert to fraction form
    10,728.90/16,093.60 = 7,553.36/x
  3. Step 3: Cross multiply
    10,728.90x = 16,093.60 × 7,553.36
  4. Step 4: Simplify right side
    10,728.90x = 121,560,754.50
  5. Step 5: Solve for x
    x = 121,560,754.50/10,728.90
  6. Step 6: Final answer
    x = 11,330.22

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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.