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Finding the Fourth Proportional to 7,906.80, 11,851.96 and 2,973.04

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Solution

The fourth proportional to 7,906.80, 11,851.96 and 2,973.04 is: 4,456.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,906.80 : 11,851.96 = 2,973.04 : x
  2. Step 2: Convert to fraction form
    7,906.80/11,851.96 = 2,973.04/x
  3. Step 3: Cross multiply
    7,906.80x = 11,851.96 × 2,973.04
  4. Step 4: Simplify right side
    7,906.80x = 35,236,351.16
  5. Step 5: Solve for x
    x = 35,236,351.16/7,906.80
  6. Step 6: Final answer
    x = 4,456.46

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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.