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Finding the Fourth Proportional to 13,596.69, 18,764.01 and 7,628.22

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Solution

The fourth proportional to 13,596.69, 18,764.01 and 7,628.22 is: 10,527.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,596.69 : 18,764.01 = 7,628.22 : x
  2. Step 2: Convert to fraction form
    13,596.69/18,764.01 = 7,628.22/x
  3. Step 3: Cross multiply
    13,596.69x = 18,764.01 × 7,628.22
  4. Step 4: Simplify right side
    13,596.69x = 143,135,996.36
  5. Step 5: Solve for x
    x = 143,135,996.36/13,596.69
  6. Step 6: Final answer
    x = 10,527.27

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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.