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Finding the Fourth Proportional to 10,754.88, 16,134.20 and 4,912.08

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Solution

The fourth proportional to 10,754.88, 16,134.20 and 4,912.08 is: 7,368.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,754.88 : 16,134.20 = 4,912.08 : x
  2. Step 2: Convert to fraction form
    10,754.88/16,134.20 = 4,912.08/x
  3. Step 3: Cross multiply
    10,754.88x = 16,134.20 × 4,912.08
  4. Step 4: Simplify right side
    10,754.88x = 79,252,481.14
  5. Step 5: Solve for x
    x = 79,252,481.14/10,754.88
  6. Step 6: Final answer
    x = 7,368.98

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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.