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Finding the Fourth Proportional to 3,972.28, 5,959.02 and 1,374.60

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Solution

The fourth proportional to 3,972.28, 5,959.02 and 1,374.60 is: 2,062.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.28 : 5,959.02 = 1,374.60 : x
  2. Step 2: Convert to fraction form
    3,972.28/5,959.02 = 1,374.60/x
  3. Step 3: Cross multiply
    3,972.28x = 5,959.02 × 1,374.60
  4. Step 4: Simplify right side
    3,972.28x = 8,191,268.89
  5. Step 5: Solve for x
    x = 8,191,268.89/3,972.28
  6. Step 6: Final answer
    x = 2,062.11

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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.