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Finding the Fourth Proportional to 9,606.88, 13,257.50 and 5,190.88

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Solution

The fourth proportional to 9,606.88, 13,257.50 and 5,190.88 is: 7,163.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,606.88 : 13,257.50 = 5,190.88 : x
  2. Step 2: Convert to fraction form
    9,606.88/13,257.50 = 5,190.88/x
  3. Step 3: Cross multiply
    9,606.88x = 13,257.50 × 5,190.88
  4. Step 4: Simplify right side
    9,606.88x = 68,818,091.60
  5. Step 5: Solve for x
    x = 68,818,091.60/9,606.88
  6. Step 6: Final answer
    x = 7,163.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.