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Finding the Fourth Proportional to 18,796.56, 28,195.04 and 7,557.10

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Solution

The fourth proportional to 18,796.56, 28,195.04 and 7,557.10 is: 11,335.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,796.56 : 28,195.04 = 7,557.10 : x
  2. Step 2: Convert to fraction form
    18,796.56/28,195.04 = 7,557.10/x
  3. Step 3: Cross multiply
    18,796.56x = 28,195.04 × 7,557.10
  4. Step 4: Simplify right side
    18,796.56x = 213,072,642.68
  5. Step 5: Solve for x
    x = 213,072,642.68/18,796.56
  6. Step 6: Final answer
    x = 11,335.73

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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.