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Finding the Fourth Proportional to 6,615.36, 9,923.25 and 3,326.66

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Solution

The fourth proportional to 6,615.36, 9,923.25 and 3,326.66 is: 4,990.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.36 : 9,923.25 = 3,326.66 : x
  2. Step 2: Convert to fraction form
    6,615.36/9,923.25 = 3,326.66/x
  3. Step 3: Cross multiply
    6,615.36x = 9,923.25 × 3,326.66
  4. Step 4: Simplify right side
    6,615.36x = 33,011,229.23
  5. Step 5: Solve for x
    x = 33,011,229.23/6,615.36
  6. Step 6: Final answer
    x = 4,990.09

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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.