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Finding the Fourth Proportional to 2,906.63, 4,012.64 and 1,967.39

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Solution

The fourth proportional to 2,906.63, 4,012.64 and 1,967.39 is: 2,716.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,906.63 : 4,012.64 = 1,967.39 : x
  2. Step 2: Convert to fraction form
    2,906.63/4,012.64 = 1,967.39/x
  3. Step 3: Cross multiply
    2,906.63x = 4,012.64 × 1,967.39
  4. Step 4: Simplify right side
    2,906.63x = 7,894,420.33
  5. Step 5: Solve for x
    x = 7,894,420.33/2,906.63
  6. Step 6: Final answer
    x = 2,716.00

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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.