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Finding the Fourth Proportional to 7,906.72, 10,903.08 and 6,791.34

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Solution

The fourth proportional to 7,906.72, 10,903.08 and 6,791.34 is: 9,365.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,906.72 : 10,903.08 = 6,791.34 : x
  2. Step 2: Convert to fraction form
    7,906.72/10,903.08 = 6,791.34/x
  3. Step 3: Cross multiply
    7,906.72x = 10,903.08 × 6,791.34
  4. Step 4: Simplify right side
    7,906.72x = 74,046,523.33
  5. Step 5: Solve for x
    x = 74,046,523.33/7,906.72
  6. Step 6: Final answer
    x = 9,365.01

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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.