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Finding the Fourth Proportional to 2,902.66, 4,353.96 and 711.37

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Solution

The fourth proportional to 2,902.66, 4,353.96 and 711.37 is: 1,067.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,902.66 : 4,353.96 = 711.37 : x
  2. Step 2: Convert to fraction form
    2,902.66/4,353.96 = 711.37/x
  3. Step 3: Cross multiply
    2,902.66x = 4,353.96 × 711.37
  4. Step 4: Simplify right side
    2,902.66x = 3,097,276.53
  5. Step 5: Solve for x
    x = 3,097,276.53/2,902.66
  6. Step 6: Final answer
    x = 1,067.05

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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.