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Finding the Fourth Proportional to 3,143.70, 4,713.62 and 1,063.51

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Solution

The fourth proportional to 3,143.70, 4,713.62 and 1,063.51 is: 1,594.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.70 : 4,713.62 = 1,063.51 : x
  2. Step 2: Convert to fraction form
    3,143.70/4,713.62 = 1,063.51/x
  3. Step 3: Cross multiply
    3,143.70x = 4,713.62 × 1,063.51
  4. Step 4: Simplify right side
    3,143.70x = 5,012,964.90
  5. Step 5: Solve for x
    x = 5,012,964.90/3,143.70
  6. Step 6: Final answer
    x = 1,594.61

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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.