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Finding the Fourth Proportional to 2,474.34, 3,711.60 and 830.94

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Solution

The fourth proportional to 2,474.34, 3,711.60 and 830.94 is: 1,246.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,474.34 : 3,711.60 = 830.94 : x
  2. Step 2: Convert to fraction form
    2,474.34/3,711.60 = 830.94/x
  3. Step 3: Cross multiply
    2,474.34x = 3,711.60 × 830.94
  4. Step 4: Simplify right side
    2,474.34x = 3,084,116.90
  5. Step 5: Solve for x
    x = 3,084,116.90/2,474.34
  6. Step 6: Final answer
    x = 1,246.44

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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.