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Finding the Fourth Proportional to 7,968, 11,957.13 and 3,351

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Solution

The fourth proportional to 7,968, 11,957.13 and 3,351 is: 5,028.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,968 : 11,957.13 = 3,351 : x
  2. Step 2: Convert to fraction form
    7,968/11,957.13 = 3,351/x
  3. Step 3: Cross multiply
    7,968x = 11,957.13 × 3,351
  4. Step 4: Simplify right side
    7,968x = 40,068,342.63
  5. Step 5: Solve for x
    x = 40,068,342.63/7,968
  6. Step 6: Final answer
    x = 5,028.66

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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.