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Finding the Fourth Proportional to 3,957.22, 5,931.78 and 2,008.36

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Solution

The fourth proportional to 3,957.22, 5,931.78 and 2,008.36 is: 3,010.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.22 : 5,931.78 = 2,008.36 : x
  2. Step 2: Convert to fraction form
    3,957.22/5,931.78 = 2,008.36/x
  3. Step 3: Cross multiply
    3,957.22x = 5,931.78 × 2,008.36
  4. Step 4: Simplify right side
    3,957.22x = 11,913,149.68
  5. Step 5: Solve for x
    x = 11,913,149.68/3,957.22
  6. Step 6: Final answer
    x = 3,010.48

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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.