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Finding the Fourth Proportional to 3,142.46, 4,713.93 and 951.37

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Solution

The fourth proportional to 3,142.46, 4,713.93 and 951.37 is: 1,427.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.46 : 4,713.93 = 951.37 : x
  2. Step 2: Convert to fraction form
    3,142.46/4,713.93 = 951.37/x
  3. Step 3: Cross multiply
    3,142.46x = 4,713.93 × 951.37
  4. Step 4: Simplify right side
    3,142.46x = 4,484,679.80
  5. Step 5: Solve for x
    x = 4,484,679.80/3,142.46
  6. Step 6: Final answer
    x = 1,427.12

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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.