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Finding the Fourth Proportional to 2,713.79, 4,071.02 and 958.43

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Solution

The fourth proportional to 2,713.79, 4,071.02 and 958.43 is: 1,437.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,713.79 : 4,071.02 = 958.43 : x
  2. Step 2: Convert to fraction form
    2,713.79/4,071.02 = 958.43/x
  3. Step 3: Cross multiply
    2,713.79x = 4,071.02 × 958.43
  4. Step 4: Simplify right side
    2,713.79x = 3,901,787.70
  5. Step 5: Solve for x
    x = 3,901,787.70/2,713.79
  6. Step 6: Final answer
    x = 1,437.76

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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.