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Finding the Fourth Proportional to 3,160.74, 4,731.38 and 2,062.74

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Solution

The fourth proportional to 3,160.74, 4,731.38 and 2,062.74 is: 3,087.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.74 : 4,731.38 = 2,062.74 : x
  2. Step 2: Convert to fraction form
    3,160.74/4,731.38 = 2,062.74/x
  3. Step 3: Cross multiply
    3,160.74x = 4,731.38 × 2,062.74
  4. Step 4: Simplify right side
    3,160.74x = 9,759,606.78
  5. Step 5: Solve for x
    x = 9,759,606.78/3,160.74
  6. Step 6: Final answer
    x = 3,087.76

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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.