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Finding the Fourth Proportional to 3,283.74, 4,921.29 and 1,334.88

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Solution

The fourth proportional to 3,283.74, 4,921.29 and 1,334.88 is: 2,000.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,283.74 : 4,921.29 = 1,334.88 : x
  2. Step 2: Convert to fraction form
    3,283.74/4,921.29 = 1,334.88/x
  3. Step 3: Cross multiply
    3,283.74x = 4,921.29 × 1,334.88
  4. Step 4: Simplify right side
    3,283.74x = 6,569,331.60
  5. Step 5: Solve for x
    x = 6,569,331.60/3,283.74
  6. Step 6: Final answer
    x = 2,000.56

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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.