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Finding the Fourth Proportional to 5,159.70, 7,119.99 and 3,063.42

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Solution

The fourth proportional to 5,159.70, 7,119.99 and 3,063.42 is: 4,227.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.70 : 7,119.99 = 3,063.42 : x
  2. Step 2: Convert to fraction form
    5,159.70/7,119.99 = 3,063.42/x
  3. Step 3: Cross multiply
    5,159.70x = 7,119.99 × 3,063.42
  4. Step 4: Simplify right side
    5,159.70x = 21,811,519.77
  5. Step 5: Solve for x
    x = 21,811,519.77/5,159.70
  6. Step 6: Final answer
    x = 4,227.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.