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Finding the Fourth Proportional to 2,011.96, 3,018.44 and 713.56

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Solution

The fourth proportional to 2,011.96, 3,018.44 and 713.56 is: 1,070.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.96 : 3,018.44 = 713.56 : x
  2. Step 2: Convert to fraction form
    2,011.96/3,018.44 = 713.56/x
  3. Step 3: Cross multiply
    2,011.96x = 3,018.44 × 713.56
  4. Step 4: Simplify right side
    2,011.96x = 2,153,838.05
  5. Step 5: Solve for x
    x = 2,153,838.05/2,011.96
  6. Step 6: Final answer
    x = 1,070.52

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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.