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Finding the Fourth Proportional to 3,374.66, 5,058.35 and 1,728.95

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Solution

The fourth proportional to 3,374.66, 5,058.35 and 1,728.95 is: 2,591.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,374.66 : 5,058.35 = 1,728.95 : x
  2. Step 2: Convert to fraction form
    3,374.66/5,058.35 = 1,728.95/x
  3. Step 3: Cross multiply
    3,374.66x = 5,058.35 × 1,728.95
  4. Step 4: Simplify right side
    3,374.66x = 8,745,606.78
  5. Step 5: Solve for x
    x = 8,745,606.78/3,374.66
  6. Step 6: Final answer
    x = 2,591.55

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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.